Глобальный производитель изготовления и быстрого монтажа многослойных печатных плат «под ключ»
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Какое влияние дизайн печатной платы оказывает на эффективность производства поверхностного монтажа ПП?
PCB panel design
is a technique and an art.
The direct point of pcb panel design is to combine several small PCB units with various connection methods. The more common pcb panel drawing include AA sequential spelling, AB positive and negative spelling, AA rotating spelling, AB Yin-yang spelling, ABC mixed spelling, and so on. PCB design engineers usually consider the structural size, smd electronics components performance, component layout and other functional aspects of the product when designing the board. How to improve SMT production efficiency in pcb panel design and minimize the risk of impact on product quality. The case in this article is encountered in the pcb assembly line, such as irregular PCB dimensions and impact on production efficiency after pcb panel design. At the same time, it also increases pcb assembly line and manufacturing cost.
PCB panel design purpose:
1. Due to the small and irregular PCB dimensions, it seriously affects the efficiency of smt pcba and production.
2. Realize the maximization of the utilization rate of the plate and reduce the cost.
3. Reduce production difficulty and improve product yield.
PCB panelization design guidelines:
There are many ways to design jigsaw puzzles, and it is sometimes difficult to determine which jigsaw method and the number of jigsaw puzzles to use during the trial production of new products. PCB design engineers give priority to meeting the structural requirements of the product during pcb panel drawing according to product characteristics (such as product structure limitation, peripheral interface height limitation, position limitation, etc.), followed by feedback of sheet utilization and production during PCB manufacturing and SMT production line. The question of efficiency. After the PCB board is selected in the production process, the thermal expansion after encountering different geometric dimensions and PCB boarding methods directly affects the reliability and performance of the product, which increases the processing difficulty and manufacturing cost of SMT line production. Combining the experience summaries of SMT smt pcba engineers for many years, the use of jigsaw method to improve the efficiency of SMT production line, there are several aspects to share with you:
· In the SMT production line, in order to increase the utilization rate of the production line, there are two common ways of splicing AAAA or AB. We can't directly ask which one is better? This should be considered from the complexity of the product process, the balance rate of the placement cycle of the production line machine after the panel is assembled, and the problem of parts drop after the second remelting of the bulky component, and so on.
· The positive and negative design (AABB) has the advantage of making SMT production line equipment configuration and process simple and easy. A stencil, a set of patch procedures, spi/AOI inspection procedures, and reflow soldering furnace temperature curve optimization once, etc., to increase the speed of SMT smt pcba change and complete the first piece verification at one time, and PCBA finished products can be produced in a very short time Give out to the next process function test.
·The disadvantage of the positive and negative design (AABB) is that if the product BOT surface and the TOP surface have a large difference in component layout (the main chip is larger, the component layout density is higher, and the through-hole reflow component feet exceed the board surface. Etc.) will lead to poor and unstable solder paste printing at fine pitch positions, risk of dropping parts for components with large volume and weight during the second pass. In mass production, not only the efficiency improvement problem is not solved, but also the processing difficulty and quality are caused. The problem, this is also a test of engineers' online technical research capabilities.
· Adopt (AAA/BBB) non-positive and negative design, which is more suitable for the recommendation of most factories. The
smt production line is easy to deploy and the equipment resources are rationally arranged. The production process is stable, and it is easy to improve the efficiency of the production line. When designing the PCB, engineers must consider the rationality of the layout of the overall main chip components, larger heat dissipation components, and peripheral interface components. The processing plant only needs to reasonably arrange the production line to produce the BOT surface (less component surface) and then the TOP surface (multiple component surface). ), the process engineering is easier to deal with when the quality is abnormal during the processing.
In the production process, under the premise of ensuring the straight-through rate, which jigsaw method is the best? It is necessary to comprehensively consider factors such as the machine configuration of the SMT production line, the processing capacity of the equipment, and the stability of the process.
1. First, get familiar with SMT production line configuration and theoretical capacity
2. A product of SMT single-sided SMT process 6-panel, optimized from the original 6-panel to 12-panel during mounting, reducing the number of transfers and cycle frequency to increase productivity.
3. The machine configuration combination of each SMT
production
line
is different. The equipment engineer balances the speed of each machine when changing the line, the printing machine, the SPI solder paste inspection speed, the placement speed, the reflow oven speed and the AOI inspection speed after the furnace. Optimize the entire production line for fully automated high-speed production, greatly improving the efficiency of machine utilization.
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SELECT `id`,`module`,`url`,`catdir` FROM `dbrs_category` WHERE `ismenu` = 1 [ RunTime:0.000308s ]
SHOW FULL COLUMNS FROM `dbrs_member` [ RunTime:0.001179s ]
SHOW FULL COLUMNS FROM `dbrs_page` [ RunTime:0.000928s ]
SHOW FULL COLUMNS FROM `dbrs_article` [ RunTime:0.001007s ]
SELECT `catid` FROM `dbrs_article` WHERE `route` = 'pcb_panel_design_smt_production_efficiency' LIMIT 1 [ RunTime:0.000240s ]
SELECT * FROM `dbrs_category` WHERE `id` = 233 LIMIT 1 [ RunTime:0.000255s ]
SELECT `id` FROM `dbrs_article` WHERE `catid` = 233 AND `route` = 'pcb_panel_design_smt_production_efficiency' LIMIT 1 [ RunTime:0.000228s ]
SELECT * FROM `dbrs_article` WHERE `id` = 14 LIMIT 1 [ RunTime:0.000228s ]
UPDATE `dbrs_article` SET `hits` = `hits` + 1 WHERE `id` = 14 [ RunTime:0.002092s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 0 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000708s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 223 [ RunTime:0.000255s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 223 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000302s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 224 [ RunTime:0.000231s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 225 [ RunTime:0.000196s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 226 [ RunTime:0.000195s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 226 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000315s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 227 [ RunTime:0.000205s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 227 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000296s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 243 [ RunTime:0.000201s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 244 [ RunTime:0.000192s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 245 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 228 [ RunTime:0.000188s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 228 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000306s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 246 [ RunTime:0.000202s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 246 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000268s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 280 [ RunTime:0.000195s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 247 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 248 [ RunTime:0.000186s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 249 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 250 [ RunTime:0.000186s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 250 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000310s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 284 [ RunTime:0.000198s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 285 [ RunTime:0.000189s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 286 [ RunTime:0.000186s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 288 [ RunTime:0.000186s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 289 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 287 [ RunTime:0.000183s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 290 [ RunTime:0.000183s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 242 [ RunTime:0.000186s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 242 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000286s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 274 [ RunTime:0.000198s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 275 [ RunTime:0.000189s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 276 [ RunTime:0.000188s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 277 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 278 [ RunTime:0.000186s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 281 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 282 [ RunTime:0.000184s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 283 [ RunTime:0.000184s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 229 [ RunTime:0.000184s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 229 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000269s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 230 [ RunTime:0.000194s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 231 [ RunTime:0.000188s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 291 [ RunTime:0.000186s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 291 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000280s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 292 [ RunTime:0.000196s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 297 [ RunTime:0.000188s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 294 [ RunTime:0.000186s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 232 [ RunTime:0.000316s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 232 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000309s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 233 [ RunTime:0.000200s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 234 [ RunTime:0.000189s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 235 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 236 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 237 [ RunTime:0.000188s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 237 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000281s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 238 [ RunTime:0.000199s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 238 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000322s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 265 [ RunTime:0.000199s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 266 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 267 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 268 [ RunTime:0.000184s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 269 [ RunTime:0.000184s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 270 [ RunTime:0.000183s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 271 [ RunTime:0.000183s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 272 [ RunTime:0.000182s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 273 [ RunTime:0.000182s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 239 [ RunTime:0.000184s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 251 [ RunTime:0.000183s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 252 [ RunTime:0.000183s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 253 [ RunTime:0.000185s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 253 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000306s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 254 [ RunTime:0.000198s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 255 [ RunTime:0.000188s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 256 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 257 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 258 [ RunTime:0.000184s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 259 [ RunTime:0.000183s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 260 [ RunTime:0.000182s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 279 [ RunTime:0.000194s ]
SELECT `arrchildid` FROM `dbrs_category` WHERE `id` = 292 LIMIT 1 [ RunTime:0.000212s ]
SHOW FULL COLUMNS FROM `dbrs_case` [ RunTime:0.001135s ]
SELECT `title`,`id`,`thumb`,`url`,`description`,`createtime`,`status` FROM `dbrs_case` WHERE `catid` = 292 ORDER BY `listorder` ASC,`createtime` DESC,`id` DESC LIMIT 8 [ RunTime:0.000326s ]
SELECT `arrchildid` FROM `dbrs_category` WHERE `id` = 297 LIMIT 1 [ RunTime:0.000197s ]
SELECT `title`,`id`,`thumb`,`url`,`description`,`createtime`,`status` FROM `dbrs_case` WHERE `catid` = 297 ORDER BY `listorder` ASC,`createtime` DESC,`id` DESC LIMIT 8 [ RunTime:0.000287s ]
SELECT `arrchildid` FROM `dbrs_category` WHERE `id` = 294 LIMIT 1 [ RunTime:0.000194s ]
SELECT `title`,`id`,`thumb`,`url`,`description`,`createtime`,`status` FROM `dbrs_case` WHERE `catid` = 294 ORDER BY `listorder` ASC,`createtime` DESC,`id` DESC LIMIT 8 [ RunTime:0.000263s ]
SHOW FULL COLUMNS FROM `dbrs_banner` [ RunTime:0.001100s ]
SELECT * FROM `dbrs_banner` WHERE `id` = 43 LIMIT 1 [ RunTime:0.000268s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `id` = 232 AND `status` = 1 AND `ismenu` = 1 [ RunTime:0.000226s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 232 [ RunTime:0.000199s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 232 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000289s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 233 [ RunTime:0.000200s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 234 [ RunTime:0.000191s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 235 [ RunTime:0.000188s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 236 [ RunTime:0.000185s ]
SELECT `id` FROM `dbrs_article` WHERE `catid` = 233 ORDER BY `listorder` ASC,`createtime` DESC,`id` DESC [ RunTime:0.000250s ]
SELECT `id`,`url`,`title` FROM `dbrs_article` WHERE `id` = 69 LIMIT 1 [ RunTime:0.000193s ]
SELECT `id`,`url`,`title` FROM `dbrs_article` WHERE `id` = 13 LIMIT 1 [ RunTime:0.000187s ]
SELECT `arrchildid` FROM `dbrs_category` WHERE `id` = 233 LIMIT 1 [ RunTime:0.000187s ]
SELECT `title`,`id`,`thumb`,`url`,`description`,`createtime` FROM `dbrs_article` WHERE `catid` = 233 ORDER BY `listorder` ASC,`createtime` DESC,`id` DESC LIMIT 5 [ RunTime:0.000278s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `id` IN (226,237,253,261) AND `status` = 1 AND `ismenu` = 1 [ RunTime:0.000283s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 226 [ RunTime:0.000201s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 226 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000306s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 227 [ RunTime:0.000201s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 227 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000286s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 243 [ RunTime:0.000197s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 244 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 245 [ RunTime:0.000186s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 228 [ RunTime:0.000188s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 228 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000293s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 246 [ RunTime:0.000198s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 246 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000255s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 280 [ RunTime:0.000195s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 247 [ RunTime:0.000188s ]
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SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 250 [ RunTime:0.000188s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 250 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000308s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 284 [ RunTime:0.000198s ]
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SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 242 [ RunTime:0.000186s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 242 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000285s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 274 [ RunTime:0.000197s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 275 [ RunTime:0.000240s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 276 [ RunTime:0.000190s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 277 [ RunTime:0.000187s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 278 [ RunTime:0.000186s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 281 [ RunTime:0.000185s ]
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SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 237 [ RunTime:0.000187s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 237 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000278s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 238 [ RunTime:0.000198s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 238 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000332s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 265 [ RunTime:0.000201s ]
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SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 239 [ RunTime:0.000184s ]
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SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 253 [ RunTime:0.000187s ]
SELECT `id`,`name`,`pid`,`url`,`module` FROM `dbrs_category` WHERE `pid` = 253 AND `status` = 1 AND `ismenu` = 1 ORDER BY `listorder` ASC,`id` ASC [ RunTime:0.000307s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 254 [ RunTime:0.000198s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 255 [ RunTime:0.000188s ]
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SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 257 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 258 [ RunTime:0.000185s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 259 [ RunTime:0.000184s ]
SELECT COUNT(*) AS think_count FROM `dbrs_category` WHERE `pid` = 260 [ RunTime:0.000183s ]
SELECT * FROM `dbrs_page` WHERE `catid` = 2 LIMIT 1 [ RunTime:0.000278s ]
0.440323s