It has changed the traditional design order in checking the diameter of bit.
它改变了牙轮钻头直径校核的传统设计顺序。
The difference in the caliper-measured diameter of the well and the bit size.
指井径仪测量的井眼直径与钻头尺寸之差。
Diameter controlling is of great importance in rock bit manufacturing.
保证三牙轮钻头的直径是钻头制造工艺的重点。
Diameter controlling is of great importance in rock bit manufacturing.
保证三牙轮钻头的直径是钻头制造工艺的重点。
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