钻头转速 meaning in English

bit rotation speed
bit speed
drill speed

By means of the simulation calculation , varying of the torques on the bit and the drillstring top and the rotary speed of the bit can be predicted
通过仿真计算可预测钻头处阻力扭矩、钻柱顶部扭矩和钻头转速的变化情况。
The recent development trend of cone bits is to realize their high speed . faster the speed of bit is , the more weak of common bearing seals worked under the rough environment is
牙轮钻头目前的发展趋势是实现高速化，随着钻头转速的不断提高，在恶劣环境下工作的普通轴承密封这一环节的薄弱性将显得越来越突出。
According to achievements in research , using face - radial sealing structures can adapt to the developing trend of increasing rotary speed of cone bit to a certain extent in lubricating system of bearing seal , which is cramp to bit service life
本文的研究表明，在伟l ]约钻头寿命的轴承密封润滑系统中，采用端面一径向组合密封结构能够在一定程度上适应牙轮钻头转速提高的发展趋