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注意：辅助尺上的刻度不是平均分度的。
Note that Auxiliary scale is not in even graduations.
youdao
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它是按压力单位分度的。
It is calibrated in pressure units.
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用分度值为0.01的千分尺测量外径。
Measure the diameter of wire with 0.01mm micrometer.
youdao
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用分度值为0.01的千分尺测量外径。
Measure the diameter of wire with 0.01mm micrometer.
youdao