|
10177| 0
|
[19油罐及管道強(qiáng)度設(shè)計(jì)-第四章-第三講]包邊角鋼的校核-石油大學(xué)視頻 |
| |||||
|
|
|||||
|關(guān)于我們|網(wǎng)站地圖|油氣儲(chǔ)運(yùn)網(wǎng)
( 魯ICP備11007657號(hào)-3 )
GMT+8, 2025-12-18 23:22 , Processed in 0.042638 second(s), 13 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.