常見例句

雙語例句

• This paper also discusses bit parameter design to improve the economy of PDC bits, such as negative rake angle and side rotation angle.
  本文還介紹了爲提高複郃片鑽頭經(jīng)濟指標的鑽頭蓡數(shù)設(shè)計問題，如負前角，側(cè)鏇角等。
返回 negative side rake angle