21539| 41
|
弱弱的問一句,圖紙右下角的粗糙度和那個負(fù)0.3,負(fù)0.5的標(biāo)注各是什么意思 |
| ||
| ||
| ||
| ||
| ||
| ||
| ||
| |
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, 2025-9-12 05:43 , Processed in 0.089157 second(s), 26 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.