1150mm末级自由(钢制)叶片
1150mm free standing last-stage steel blades
Cr4Mo4V钢制轴承套圈
bearing ring made from Cr4Mo4V steel
钢制波纹涵管
steel corrugated culvert pipes
钢制薄壁内压容器
Steel thin wall internal pressure vessel
钢制薄壁内压圆筒
Steel Thin Wall Cylinder Subjected to Internal Pressure
钢制薄壁外压容器
Steel thin-wall external pressure vessel
Steel thin-wall external pressure vessels
钢制薄壁圆筒
steel thinness wall cylinder
钢制浮顶罐底
steel floating--roof tank bottom