本文总结分析了三山岛金矿矿房内不同结构类型矿体中的种种爆破方案和爆破参数。
This paper studied the various blasting techniques with different blasting parameters in Sanshandao Gold Mine.
本文总结分析了国内外的围岩分级方法，以及各种围岩分级方法所采取的影响因素。
In this paper, summarized the rock classification methods at home and abroad, and analyzed various rock classification factors of different methods.
本文总结分析了滚动轴承典型故障的故障机理及其振动特征，详细介绍了滚动轴承振动信号分析与故障诊断的方法。
The fault principle and the fault vibration property were analyzed in this paper. The means of vibration signal analysis and fault diagnosis of the rolling bearing were also introduced.
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