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静电对生活生产的危害都很大,附静电预防PPT及事故警示视频

  • 2026-11-10 09:29:25
静电对生活生产的危害都很大,附静电预防PPT及事故警示视频
    静电是一种处于静止状态的电荷，由不同物体相互摩擦或接触分离时，电子发生转移而形成，广泛存在于日常生活、工业生产和科学领域中。干燥的秋冬季节，触摸金属门把手、水龙头时，常会被静电电到，虽然不痛，但会让人感到不适。在石油、化工、面粉加工等行业，静电火花可能点燃空气中的可燃性气体、粉尘，引发事故。精密的电子设备（如芯片、电路板）对静电非常敏感，人体或设备上的静电可能击穿元件，造成永久性损坏。

     

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  1. CONNECT:[ UseTime:0.000728s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000968s ]
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  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000628s ]
  6. SELECT * FROM `set` [ RunTime:0.000303s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000726s ]
  8. SELECT * FROM `article` WHERE `id` = 486684 LIMIT 1 [ RunTime:0.000363s ]
  9. UPDATE `article` SET `lasttime` = 1794424469 WHERE `id` = 486684 [ RunTime:0.001491s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000313s ]
  11. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000425s ]
  12. SELECT * FROM `article` WHERE `id` > 486684 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000502s ]
  13. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000584s ]
  14. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000624s ]
  15. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000531s ]
0.088807s