6670| 0
|
[06油罐及管道强度设计-第二章-第一讲]旋转薄壳的几何特征和轴对称回转薄壳的内力... |
|关于我们|网站地图|油气储运网 ( 鲁ICP备11007657号-3 )
GMT+8, 2024-11-14 15:10 , Processed in 0.076885 second(s), 15 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.