3339| 10
|
請教盾構機在隧道內怎樣支撐自己 |
| ||
| ||
| ||
| ||
Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-7-21 13:14 , Processed in 0.087990 second(s), 21 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.