Measuring tools e. g. calipers , micrometres, comparison scales, height measuring instrument, Gauge blocks, and etc.
测量工具系列，如：卡尺、千分尺、比较仪、测高仪、块规等。
The optimeter is widely used to precisely measure external size of workpiece by comparison with a gauge block or standard part.
本仪器是一般是用标准器（如量块）以比较法测量工件的尺寸。
The method for analysis and comparison of level of the standard gauge tolerance for normal products of the cold rolled steel sheets is put up.
提出了一种冷轧薄钢板常用产品标准厚度公差水平进行分析比较的方法。
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