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210页,八大机械传动知识培训PPT,绝对干货

  • 2026-09-19 19:43:40
210页,八大机械传动知识培训PPT,绝对干货
齿轮传动、蜗杆传动、链传动、带传动、连杆机构及其传动、凸轮机构、螺旋机构和液压传动八大机械传动知识培训PPT，绝对干货。

来源：金属加工

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基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000730s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000697s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000397s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000379s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000590s ]
  6. SELECT * FROM `set` [ RunTime:0.000330s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000623s ]
  8. SELECT * FROM `article` WHERE `id` = 464125 LIMIT 1 [ RunTime:0.000455s ]
  9. UPDATE `article` SET `lasttime` = 1790176190 WHERE `id` = 464125 [ RunTime:0.001525s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000349s ]
  11. SELECT * FROM `article` WHERE `id` < 464125 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000430s ]
  12. SELECT * FROM `article` WHERE `id` > 464125 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000389s ]
  13. SELECT * FROM `article` WHERE `id` < 464125 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000687s ]
  14. SELECT * FROM `article` WHERE `id` < 464125 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000652s ]
  15. SELECT * FROM `article` WHERE `id` < 464125 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000629s ]
0.114030s