36157| 89
|
在4200x15300厚3的不銹鋼板上鉆直徑2mm間距3.5mm的孔981萬個---求助 |
點評
間距3.5,4200*15300/3.5/3.5=5245714為何是981萬個孔呢?
| ||
| ||
| ||
| ||
| ||
| ||
| ||
| ||
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-7-22 02:39 , Processed in 0.075551 second(s), 19 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.