pneumatic mortar applying

例句：

1. 1. The engineer applied the pneumatic mortar to the wall for reinforcement.
   工程师用气动砂浆加固了墙壁。
2. 2.The construction crew used pneumatic mortar to build the foundation of the new building.
   建筑工人使用气动砂浆建造了新建筑的基础。
3. 3. The contractor applied a layer of pneumatic mortar before painting the exterior walls.
   承包商在粉刷外墙之前先涂上了一层气动砂浆。