测量工具系列，如：卡尺、千分尺、比较仪、测高仪、块规等。
Measuring tools e. g. calipers , micrometres, comparison scales, height measuring instrument, Gauge blocks, and etc.
描述和评价测量方法，例如：属性筛选法、块规法、测径器、千分尺、光学比较仪、抗张强度、滴定等。
Describe and review measurement methods such as attribute screens, gauge blocks, calipers, micrometers, optical comparators, tensile strength, titration, etc.
本比较仪是一种测量范围特别宽大的扭簧比较仪，且精度高，因而更适应不同的测量需要。
The microkator is characterized by very wider measurement range and high accurate. so it used more in different measuring.
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