There are many factors influencing the bitdiameter and the tooth row intermesh due to the complicated shapes of the main parts of a three cone bit.
三牙轮钻头主要零件形状复杂，影响钻头直径及牙轮齿圈啮合误差的因素较多。
2
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。
3
According to the relation between the temperature and the ratio of the diameter of the defrosting zone to that of the drilling bit, the volume of washing fluid is optimized.