3099| 0
|
A.B倆地相距18KM,甲工程對要在A.B兩地間鋪設一條輸送天然氣管道,乙工程隊要在A.B兩地 |
|關于我們|網站地圖|油氣儲運網
( 魯ICP備11007657號-3 )
GMT+8, 2025-9-9 16:17 , Processed in 0.018275 second(s), 11 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.