8476| 0
|
某市的天然气管道进行改造,甲队单独做这工程需要10天,乙队当做这过程需要15天,丙队 |
|关于我们|网站地图|油气储运网
( 鲁ICP备11007657号-3 )
GMT+8, 2025-4-2 18:11 , Processed in 0.030521 second(s), 14 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.