cast in situ pile

例句：

1. 1.The engineer carefully cast the in situ pile into the ground.
   工程师小心翼翼地将就位的桩放入地面。
2. 2.The construction crew had to cast the in situ pile before starting the project.
   施工队伍在开始项目之前必须将就位的桩浇筑好。
3. 3.The engineer used a special tool to cast the in situ pile accurately.
   工程师使用一种特殊工具准确地浇筑了就位的桩。