用于检查直齿及斜齿的外齿合圆柱齿轮的基节偏差，并使用高精度的测微表指示。
This tester is suitable to measuring the bapitch deviation of straight and helical circular gear, the accuracy value has been indicated.
用于检查直齿及斜齿的外齿合圆柱齿轮的基节偏差，并使用高精度的测微表指示。
This tester is suitable to measuring the bapitch deviation of straight and helical circular gear, the accuracy value has been indicated.
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