three-roller bit的意思|示意
三牙轮钻头
three-roller bit的网络常见释义
三牙轮钻头 三牙轮钻头 three roller bit; three-cone bit; three-roller bit; tricone bit; tricone rock bit; trionebit 十字形牙轮 cross cutters .
three-roller bit相关短语
1、 three roller bit 三牙轮钻头
three-roller bit相关例句
In this paper, on the basis of the results obtained from the bench and field tests of the three roller bit, its improving direction is approached.
本文以三牙轮钻头的台架试验和油气田现场试验的效果为依据，探讨三牙轮钻头的改进方向。