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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

  • 2026-04-22 21:37:09
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:0.001132s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001398s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001303s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000748s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001480s ]
  6. SELECT * FROM `set` [ RunTime:0.000816s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001390s ]
  8. SELECT * FROM `article` WHERE `id` = 486684 LIMIT 1 [ RunTime:0.001009s ]
  9. UPDATE `article` SET `lasttime` = 1776952900 WHERE `id` = 486684 [ RunTime:0.001441s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000646s ]
  11. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001866s ]
  12. SELECT * FROM `article` WHERE `id` > 486684 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001057s ]
  13. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.005285s ]
  14. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004250s ]
  15. SELECT * FROM `article` WHERE `id` < 486684 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003232s ]
0.203071s