The Definition and Calculation of the Location of Spot Erosion for Involute Gear Correction of the Errors for the Composite Curve Radius是什么意思_The Definition and Calculation of the Location of Spot Erosion for Involute Gear Correction of the Errors for the Composite Curve Radius在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句