电子工艺实践教程-畅读网

　　　　

电子工艺实践教程

作者：张金

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内容简介:

本书是作者在多年电子系统设计工程实践及教学基础上，以电子工艺、装配、调试技术为主，为电子工艺实训教学而编写的。本书内容包括安全用电、常用工具及材料、电子读图制图、焊接工艺、装配工艺、调试工艺、表面贴装工艺等，系统地介绍了电子工艺的基本常识。本书体系完整，内容充实，实例丰富，实用性强，叙述浅显易懂，可帮助高校学生掌握电子制作和设计的基本技能。

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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 45 LIMIT 1 [ RunTime:0.001442s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.001578s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.003801s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1776737966 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.702253s ]

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