concrete coating

例句：

1. 1. The construction crew useda concrete coating to waterproof the walls.
   建筑工人使用混凝土涂层来防水墙壁。
2. 2. Theengineers decided to use a concrete coatingon the roof to prevent water damage.
   工程师决定在屋顶上使用混凝土涂层以防止水损害。
3. 3. The new building is covered ina layer of concrete coating to protect itfrom the elements.
   新建筑覆盖着一层混凝土涂层以保护它免受恶劣天气的影响。