degradation index meaning in English

粉碎指数
衰化指数

The results show that the sinters for the bf in shuicheng iron and steel co . , ltd . have middle rdi ( low temperature reduction degradation index ) , choice ri ( reduction index ) , wider softening temperature range , high start melt and dropping temperature , smaller melt and dropping temperature range
研究结果表明，水钢烧结矿具有中等及中等偏下的低温还原粉化性能和优良的还原性能；软化区间偏宽，开始熔化温度高和开始滴落温度高，却有较窄的熔滴区间。
On the basis of geographical space distribution method , i choose shaanxi province for land degradation and poverty have great dependence , and use land degradation index data , unit area total value of agriculture , per capita agriculture total value and peasant per capita income , etc to carry on dependence analyze
在地理空间分布方法的基础上，本文选取土地退化与贫困相关性较大的陕西省，运用土地退化指标数据与单位面积第一产业总值，人均第一产业总值和农民人均收入等数据进行相关性分析。