We hold our records on microfilms.

我们把记录保存在缩微胶卷上.

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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.

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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.

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