bit design的用法和樣例：
例句
- The diamond bit design expert system and the computer controlled system for the bit production are described with their uses in production.
介紹了金剛石鉆頭設計的專家系統和鉆頭制造的微機自動控制系統，以及在生產中使用的情況。 - The desig ner should consider comprehensively the effect of structure data and radial clea rance on the life of the roller bearing, in order to make optimum design.
鉆頭設計要優化軸承結構參數和徑向游隙，以提高國產牙輪鉆頭的壽命。
