求翻译：本论文研究水电厂主轴系统故障故障树诊断的原理、建树方法以及定性定量法则。并根据收集到的水轮发电机组主轴系统的一般故障，然后在原理分析的基础上，建立故障树，并进行定性和定量分析。是什么意思？

The principle of this thesis research hydropower plant spindle system failure fault tree diagnosis, achievements as well as qualitative and quantitative rules. And in accordance with the general failure of the system of hydroelectric generating set collected from the spindle, then in principle on th

This paper studies water power plants spindle System Fault Tree works, as well as qualitative quantitative methods. And in the main system won the general problem, and then in theory on the basis of our analysis, fault tree, and qualitative and quantitative analysis.

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This thesis research principle of fault fault tree diagnosis of spindle system for hydropower plants, building methods and qualitative and quantitative rules. And collected under General fault of turbine generator shaft systems, then in principle on the basis of analysis of established fault tree an

The present paper studies the hydroelectric power plant main axle system failure fault tree diagnosis the principle, the achievements method as well as the qualitative quota principle.And acts according to the water-turbine generator set main axle system general breakdown which collects, then in the