roller cone bit

常見(jiàn)例句

On the system dynamics, the dynamics model for roller cone bit under the interaction of drilling string and rock was established.
從系統(tǒng)動(dòng)力學(xué)的角度出發(fā)，建立了基于鉆柱、巖石相互作用下的牙輪鉆頭動(dòng)力學(xué)模型。
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The high grade artificial diamond with the lowest magnetism is picked up to strengthen the surface of steel tooth roller cone bit;
磁選熱穩(wěn)定性良好的優(yōu)質(zhì)人造金剛石作鋼齒牙輪鉆頭齒面強(qiáng)化材料；
Simulated test was made to indicate the charges in volume and in Pressure of ths lubrication system in a roller cone bit at high temperature and under high pressure downhole.
對(duì)牙輪鉆頭潤(rùn)滑密封儲(chǔ)油系統(tǒng)在井底高溫條件下的容積及壓力變化進(jìn)行了模擬實(shí)驗(yàn)。