To do so, he does not cause surface layer and cement mortar is inconsistent, surface water mud too much, easy to the problem of craze.

这样做，就不致造成表面与里层砂浆配合比不一致，表面水泥浆太多，易于开裂的问题。

youdao

Mud is probably the oldest mortar used to hold together bricks or stones.

泥浆也许是最古老的黏合石块的砂浆。

youdao

Local residents, who were the first to reach the scene of the accident, used their bare hands to scoop away mud and mortar and pull out survivors.

当地居民，第一个到达事故现场，赤手挖走泥土和灰泥，拉出幸存者。

youdao

The plan was to relieve another squad occupying a mud-walled compound and retaliate against insurgent mortar teams hitting the patrol base.

WSJ: A Marine's Death Brings Together