rock bit meaning in English
牙轮钻头
凿岩钻头
钻岩钻头
Examples
- Hard metal carbide inserts for mining and oil - field rock bits
矿山油田钻头用硬质合金齿 - Development of low - temperature electroplated pdc petroleom rock bits
低温电镀复合片石油全面钻头的研制 - Torsional vibration simulation analysis of drilling string and rock bit
钻井用钻头和钻柱扭转振动的仿真分析 - Blast hole tricone rock bits
矿用三牙轮钻头 - Research on the techniques and their realization to improve the tri - cone rock bits ' life span
与牙轮钻寿命相关的若干技术及其实现的研究