By using the methods of phase space construction and correlation dimension, the fractal character of sea level variation along Guangxi coast was analyzed.
采用相空间重构和关联维数方法，研究了广西沿岸月平均海平面变化的分形特征。
Variation condition, distribution rule and correlation of main quantitative character of 82 open ground strawberry varieties (or lines) were studied and analyzed.
以露地栽培的82份草莓品种(系)为材料，对其主要数量性状的变异、分布规律及相关性进行了研究和分析。
The experiment was carried out to investigate each character of sunflower and its variation extent, and the correlation of the heterosis and the parent character value.
本文研究了向日葵各性状的杂种优势及其变异程度，杂种优势同亲本各特征值的相关性。
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