Regardless of cutting method used in step 1, burrs are created which must be removed from both the pipe I.D. and O.D. before joining.是什么意思_Regardless of cutting method used in step 1, burrs are created which must be removed from both the pipe I.D. and O.D. before joining.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句