bit design

• 钻头设计

bit design的用法和样例：

例句

1. The diamond bit design expert system and the computer controlled system for the bit production are described with their uses in production.
   介绍了金刚石钻头设计的专家系统和钻头制造的微机自动控制系统，以及在生产中使用的情况。
2. 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.
   钻头设计要优化轴承结构参数和径向游隙，以提高国产牙轮钻头的寿命。