钻柱将其扭转振动传至钻机动力头，引起动力头齿轮传动系统的非线性振动。
The BHA transmits its torsional vibration to the gear system of drill power pack and brings about nonlinear vibration.
传纸滚筒、倍径传纸滚筒及压印滚筒通过驱动齿轮相联结。
The paper transmission drum, a time-diameter paper transmission drum and an imprint drum are connected by a driving gear.
所述传动齿轮沿所述传动齿轮轴可选择性地移动。
The drive gear is selectively movable along the drive gear axis.
所述传动齿轮沿所述传动齿轮轴可选择性地移动。
The drive gear is selectively movable along the drive gear axis.
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