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【传动系列】系列PPT之带传动和链传动,从结构到材料到选型,270页完整版,速收藏!!

  • 2026-11-09 16:57:26
【传动系列】系列PPT之带传动和链传动,从结构到材料到选型,270页完整版,速收藏!!

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  1. CONNECT:[ UseTime:0.000452s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000600s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000322s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000347s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000498s ]
  6. SELECT * FROM `set` [ RunTime:0.000264s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000674s ]
  8. SELECT * FROM `article` WHERE `id` = 487580 LIMIT 1 [ RunTime:0.000367s ]
  9. UPDATE `article` SET `lasttime` = 1794411360 WHERE `id` = 487580 [ RunTime:0.001287s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000301s ]
  11. SELECT * FROM `article` WHERE `id` < 487580 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000380s ]
  12. SELECT * FROM `article` WHERE `id` > 487580 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000359s ]
  13. SELECT * FROM `article` WHERE `id` < 487580 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000494s ]
  14. SELECT * FROM `article` WHERE `id` < 487580 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000485s ]
  15. SELECT * FROM `article` WHERE `id` < 487580 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000492s ]
0.092416s