The results show that satisfied result can be got while gray relation degree theory is used to analyze all kinds of factors" influence to the voids."
研究结果表明：灰关联分析法用于分析诸因素对空隙率的影响能获得较好的结果。
The gray relation degree indicates that the series for adaptability of every mining method are surface mining, sublevel caving mining, block stop mining etc;
灰关联度计算表明，采矿方法适应性排序为：露天开采法、分段崩落法、阶段矿房法等；
This paper analyzes some influence factors that affect the performance of elite jumpers with the method of gray relation theory in order to find out the effect degree.
对优秀跳远运动员跳远成绩的影响因素进行灰色理论分析，以寻求各影响因素的影响度。
There are many methods to evaluate water environment quality. The gray relation method mainly reflects the correlation degree between sample and environmental criterion.
用于水环境质量评价的方法较多，而灰色关联分析法主要体现的是待评价样本与环境质量分级标准在整体上的关联程度。
Gray degree relation analysis is advanced according to the grey features of rock body steadiness grading. It is proved scientific, reliable, simple and easy to conduct according to the practical data.
根据岩体稳定性分级的灰色性，提出了岩体稳定性分级的灰色关联分析法，并经实测数据进行验证，说明此方法是科学可靠的，且简单易行。
Gray degree relation analysis is advanced according to the grey features of rock body steadiness grading. It is proved scientific, reliable, simple and easy to conduct according to the practical data.
根据岩体稳定性分级的灰色性，提出了岩体稳定性分级的灰色关联分析法，并经实测数据进行验证，说明此方法是科学可靠的，且简单易行。
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