齿轮常用材料与热处理-畅读网

　　　　

齿轮常用材料与热处理

作者：张展

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内容简介:

本书立足于行业内部，针对读者需求，主要介绍齿轮的失效形式及对策、齿轮常用材料、热处理基本原理与工艺、表面热处理、化学热处理、铸铁齿轮的热处理、典型零件的热处理、大型零件的焊接与热处理、齿轮热处理缺陷与质量控制，并给出热处理技术术语中英文对照、中日文对照，实用性非常强。

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SHOW FULL COLUMNS FROM `ls_goods_category` [ RunTime:0.002373s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.001831s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 2 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.001799s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 3 ORDER BY `sort` DESC [ RunTime:0.001583s ]
SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.004706s ]
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SHOW FULL COLUMNS FROM `ls_friendly_link` [ RunTime:0.003466s ]
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SHOW FULL COLUMNS FROM `ls_goods` [ RunTime:0.003410s ]
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SHOW FULL COLUMNS FROM `ls_ad` [ RunTime:0.004001s ]
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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 47 LIMIT 1 [ RunTime:0.002375s ]
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:0.002854s ]
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:0.002788s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1758429671 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:1.261735s ]

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