单词laitance
n.: 浮沫;翻沫;浮浆皮网络: 浮渣;浆沫;水泥乳
浮浆皮
翻沫
浮沫
called laitance, this produces a dusty surface and a plane of weakness.
一只脏兮兮的表面和一架飞机的弱点。