6236| 12
|
請問在2440*1220的長方形板上布直徑237的孔能布多少個呢?能超過51個嗎 |
| ||
| ||
| ||
| ||
| ||
| ||
Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
GMT+8, 2025-7-21 06:44 , Processed in 0.078713 second(s), 16 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.