Based on the comprehensive analysis of drill spindle fracture failure of the research ,combining actual corresponding scientific and reasonable technological improvement ,thus to effectively improve the reliability of the drilling rig .%通过对钻机主轴断裂失效的综合分析研究,结合实际进行相应的科学合理的技术改进,从而有效提高了钻机工作的可靠性。
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