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  • 2026-06-21 13:52:38
设备管理与维护--课件可获取!

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设备管理与维护

化工生产的特点

1.易燃、易爆和有毒、有腐蚀性的物质多

2.高温、高压、低温、负压的设备多

3.工艺复杂、操作要求严格

4.环境污染

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  1. CONNECT:[ UseTime:0.000427s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000554s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000284s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000254s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000467s ]
  6. SELECT * FROM `set` [ RunTime:0.017384s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000715s ]
  8. SELECT * FROM `article` WHERE `id` = 505637 LIMIT 1 [ RunTime:0.000434s ]
  9. UPDATE `article` SET `lasttime` = 1782419416 WHERE `id` = 505637 [ RunTime:0.008722s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000274s ]
  11. SELECT * FROM `article` WHERE `id` < 505637 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000438s ]
  12. SELECT * FROM `article` WHERE `id` > 505637 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000430s ]
  13. SELECT * FROM `article` WHERE `id` < 505637 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000589s ]
  14. SELECT * FROM `article` WHERE `id` < 505637 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.005093s ]
  15. SELECT * FROM `article` WHERE `id` < 505637 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000677s ]
0.108482s