cement layer

• 粘质层,士敏土层

cement layer的用法和样例：

例句

1. In LASIK, a flap is cut in the stromal layer and the flap is folded back.
   而激光辅助原位屈光性角膜成形术使用的方式是切入基质层，创建一个折边，再将折边反转过来，露出基质层。
2. The outer lipid layer is an oily film that seals the tear film on the eye and helps to prevent evaporation.
   外面的脂质层是一层油性膜，它将泪液膜封在眼球上，帮助阻止蒸发。