费用低廉的表面贴器件焊接指南，用低于￥400费用焊接绝大部分表面贴器件。-Low-cost surface mount device soldering guide, with 400 costs less than ￥ soldering surface mount devices vast majority.
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SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.072320s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001032s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000954s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002980s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000848s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015540s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001097s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 166717 [ RunTime:0.013099s ]
