As the target function of the optimization model, the system entire efficacy was calculated by power index and fuzzy weight methods.
采用幂指数法结合模糊权重评价法计算系统总体效能，并以此作为优化的目标函数。
The relationship between concentration factor of byssus and whole body wet weight (or shell length) is a negative power function.
足丝的浓集团子与贻贝整体湿重（或壳长）呈负幂函数关系。
The weight of ramets was a power function growth along with the height increase in the two kinds of ramets.
两种分株的重量均随其高度的增加呈幂函数形式增加。
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