Based on the clump intensity index, regressive analysis method and zero frequency method, the spatial distribution pattern of Latori bicolor (Walker) larvae was studied.
应用聚集度指标法、回归分析法、零频率方法对两色绿刺蛾幼虫在毛竹林间的分布型进行测定。
After the final statistical distribution grade sample valuations, the frequency of ore amount of industrial index proportion.
统计出了估值后样品品位分布频数，得出了工业指标下的矿量比例。
In this paper, the law of earthquake ground motion is analyzed comprehensively by taking account of duration, frequency characteristic and peak index of energy distribution.
本文从强震持时、频谱特性和能量分布峰态系数等三个方面对地震地面运动规律进行综合分析，提出了一种较为客观的地震地面运动分类方法。
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