combination casing column

例句：

1. 1. The engineer designed a combinationcasing column for the new building.
   工程师为新建筑设计了一个组合壳体柱。
2. 2. The construction company used a combinationcasing column to reinforce the foundation.
   建筑公司使用了一个组合壳体柱来加固地基。
3. 3. The engineer explained that the combinationcasing column would be used to supportthe weight of the structure.
   工程师解释说，组合壳体柱将被用来支撑结构的重量。