因此厚度过大的面层、强度过高的砂浆都是不适当的。

So too, the thickness of the surface strength high mortar are inappropriate.

youdao

面层抹得很厚，用上高标号水泥，高强度砂浆，这就错了。

Wipe the surface very thick, use high-grade cement mortar, high strength, this is wrong.

youdao

如果有必要，应检查砂浆的强度。

If necessary, the strength of the mort.

youdao

如果有必要，应检查砂浆的强度。

If necessary, the strength of the mort.

youdao