“覆层”造句
油轮外部金属板
覆层破裂的那一瞬间，油开始外溢。
The tanker began spilling oil the moment her outer plating ruptured.
最好是将敏化剂包裹在十分小的固体包
覆层中.
The sensitizer is preferably encapulsated in quite small capsules of a solid.
此法所制造的包
覆层可防止发动机导管受到热的作用.
The inhibitor means provided by the process provides thermal protection to the motor tube.