...氮、土壤全磷、坡度、坡向等10个因素，采用层次分析法确定评价指标权重，在引入土壤质量相对指数（Relative Soil Quality Index，RSQI）及土壤相对指数变化量ΔRSQI的基础上，应用地理信息系统软件Map GIS数据采集及空间分析功能对雨...
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基于大约20年的历史数据，研究表明，到2030年将有多达48%的英国男性会肥胖——身体质量指数超过30——相对于现在的26%来说。
Based on around 20 years of historic data, the study says that by 2030 as many as 48% of British men could be obese - having a body mass index of more than 30 - as against 26% now.
地位指数是立地质量相对于具体树种的数量化反映，也是森林经营和收获预估的重要依据。
Site index is not only the quantity reflection of the of site quality of different species, but the important basis of forestry management and harvest.
水环境质量评价指数法是根据水质组分浓度相对于其环境质量标准的大小来判断水的质量状况。
Composite index analysis is based on the relative concentration of quality components in its environmental quality standards to judge the pollution levels of the water-quality status.
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