case structure
短语词组
- casing string structure 套管柱结构
- casing -structure heat-exchanger 板壳换热器
- single casing structure 单缸结构
- prestressed column casing structure 圆筒形预应力结构
- spiral casing structure 蜗壳结构
- Structure and casing design specialist 结构设计工程师 返回 case structure