microfilms例句

We hold our records on microfilms.
我们把记录保存在缩微胶卷上.

The tribochemical mechanisms include the formation of microfilms on coatings and the oxidation of coatings.
摩擦化学原理包括涂层表面化学保护层的生成、涂层的氧化等方面的理论.

At the bottom of the basket lay three microfilms, each in a metal case.
在筐子底下藏着三卷微缩胶卷, 都用铁盒子装着.