The dynamics of roller cone bit under the interaction of drilling string, bit and rock during the drilling process was investigated.
研究了钻井过程中钻柱、钻头、岩石相互作用下的牙轮钻头动力学特性。
The dynamics of roller cone bit under the interaction of drilling string, bit and rock during the drilling process was investigated.
研究了钻井过程中钻柱、钻头、岩石相互作用下的牙轮钻头动力学特性。
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