The trimmer is divided into two parts of an upper part and a lower part and trims the infusion flow through a worm matching with whirling motion and the change of positions.
微调器分为上下两部分，其通过螺纹配合旋动及位置的变化来微调输液流量。
With the increase in rotary speed, the motion state of drill string will be successively transformed from regular swaying into irregular swaying and regular whirling.
随转速的增加，钻柱的横向运动逐渐由规则摆动向无规则摆动和规则反向涡动转化。
The weight on bit and rotary speed are the main factors affecting the motion behavior of drill string. The higher the rotary speed is, the more easily the regular whirling will be formed.
钻压和转速是影响钻柱运动状态的两个主要因素，转速越高，越容易形成规则涡动；
The weight on bit and rotary speed are the main factors affecting the motion behavior of drill string. The higher the rotary speed is, the more easily the regular whirling will be formed.
钻压和转速是影响钻柱运动状态的两个主要因素，转速越高，越容易形成规则涡动；
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