|
3427| 0
|
要使起重机在5s内将质量为2.0的货物由静止开始匀速提升10m高 起重机额定功率 |
|关于我们|网站地图|油气储运网
( 鲁ICP备11007657号-3 )
GMT+8, 2024-11-27 19:53 , Processed in 0.023026 second(s), 11 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.
发表于 2013-4-1 10:47:30