“外测径器”用来量度外边的尺寸；“内测径器”则量度内部的尺寸。
"Outside calipers" are used for measuring external sizes, and "inside calipers" for measuring internal sizes.
测径器一种大仪器，在一刻度盘上有固定且可动的测脚，用于测量圆木和类似物体的直径。
A large instrument having a fixed and a movable arm on a graduated stock, used for measuring the diameters of logs and similar objects.
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.
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