1)bit skew,钻头偏转量2)whirling bit,偏心回转钻头3)whirl-resistant bit,防止偏心转动的钻头4)eccentric bit,偏心钻头5)deflection of the bit,钻头偏斜6)mule foot a bit,钻头偏磨
用法例句
A mechanical model of bottom hole assembly (BHA) with eccentric bits is established and the solution of this model was given by means of numerical method.
