shaft wall cementing

例句：

1. 1. The engineer used a steel shaft tosupport the weight of the water tank.
   工程师使用一根钢制井壁来支撑水罐的重量。
2. 2. The construction crew was working onthe shaft wall cementing.
   施工队正在对井壁进行水泥加固。
3. 3. The new designuses a reinforced concrete shaft wall forbetter strength and durability.
   新设计使用了钢筋混凝土井壁，以增强强度和耐久性。