NSK uses the standard ISO clearance designations such as C2, Normal, C3, C4 and C5 for bearings with an inner ring bore diameter greater than or equal to 10mm.是什么意思_NSK uses the standard ISO clearance designations such as C2, Normal, C3, C4 and C5 for bearings with an inner ring bore diameter greater than or equal to 10mm.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句