熟练使用内、外千分尺以及游标卡尺。
Completed ability to use inside and outside micrometer, caliper.
游标卡尺用于一般机械加工中的测量，可测量内、外尺寸、深度及台阶等。
The vernier calipers are measuring tools for the machine shop and inspection department. They are used to measure outside, inside dimensions. Type I calipers are used to measure depth and step.
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