英语语法分析

For tile work, a very thin mortar called grout is used.

制瓦使用的是一种叫做薄泥浆的很薄的砂浆。

Grout placement and vent holes should be provided if necessary.

必要时应提供灌浆位置和通气孔。

Tiles. Check tiles and grout and touch up/repair where there are cracks or pitting.

瓦片。检查一下瓦片和灌浆。有开裂或蚀损的地方要维护\修补。