Special tolerance class for machine tool spindle bearings; dimensional accuracy approximately to ISO tolerance class 5 and running accuracy approximately to ISO tolerance class 4.是什么意思_Special tolerance class for machine tool spindle bearings; dimensional accuracy approximately to ISO tolerance class 5 and running accuracy approximately to ISO tolerance class 4.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句