植被盖度与土壤风蚀量呈幂函数相关。
Vegetation coverage and wind erosion showed power function relationship.
破碎体应变和破碎率之间存在近似的幂函数关系。
The relationship between the breakage volumetric strain and the relative breakage can be fitted by a power function.
膜孔多向交汇入渗各阶段入渗曲线均符合幂函数规律。
Various phase of film hole bilateral interference infiltration accords with power function.
两种分株的重量均随其高度的增加呈幂函数形式增加。
The weight of ramets was a power function growth along with the height increase in the two kinds of ramets.
用幂函数构成的模糊集满足测量准则，使模糊集理论更完善。
The fuzzy set constituted by power function satisfies measure rule, and perfects the fuzzy theory.
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 relationship between concentration factor of byssus and whole body wet weight (or shell length) is a negative power function.
对已有根据观测提出的幂函数形式风浪成长关系进行了分析。
The existing wind wave growth formulas (WWGFs) in the form of power function, which were presented on the basis of measurements, are analyzed.
结论用幂函数曲线法来提高眼底图像对比度的效果是比较好的。
Conclusion: the effect is quite good to enhance the eyeground image contrast with the power function curve.
结论：用幂函数曲线法来提高眼底图像对比度的效果是比较好的。
CONCLUSION: It is better effect of exponential curve method on improving contrast of image of eye fundus.
最终选择椭圆形作为螺旋形状，采用幂函数来模拟螺旋旋转过程。
The elliptical configuration was taken for the screw and power function was adopted to simulate the rotation process of the screw.
樟子松种群自疏规律为：平均胸径与密度的关系符合负幂函数模型。
Regulation of self- thinning is that relationship between DBH and average density of population accords with negative power function.
回归分析表明：土壤入渗速率与入渗时间之间存在显著的幂函数关系。
Regression analysis shows that the soil infiltration rate is significantly correlated with time.
模型中水动力方程和泥沙扩散方程均采用幂函数方案的有限体积法离散。
In the model, the finite volume method discrete of power function is adopted for the hydrodynamic and silt diffusion equations.
证明了一类非线性项受幂函数控制的次线性分数微分方程的正解存在性。
The existence of positive solution is proved for a class of sublinear fractional differential equations where the nonlinear terms subject to the power functions.
对以幂函数族和以正交函数族为基底的最小二乘曲线拟合法作了对比分析。
The least-squares curve fitting methods based on power functions and orthogonal functions are analyzed and compared.
树种数和树木的密度都随高度级、径级的增加而呈负指数或负幂函数递减。
Both the Numbers of tree species and tree density decreased as height class or diameter class increased, fitting both negative exponential and negative power equations.
以幂函数为试函数，用配点法计算了夹层圆板和夹层扁球壳的非线性弯曲。
Taken power function as a trial function, nonlinear bending of circular sandwich plates and shallow spherical sandwich shells was discussed by means of point collocation.
根据实测的永久变形与温度循环次数的关系，提出了一个幂函数的数学模型。
On the basis of relationship between permanent distortion and thermal cycling number, we present mathematical model in terms of power function.
并以壳层的介电常量为幂函数为例，得到了梯度壳层介质球的等效介电常量。
As an example, the equivalent dielectric constant of inhomogeneous dielectric sphere, whose shell has power-law gradation profile is obtained.
新的温度更新函数与退火时间的幂函数成反比，与优化问题的变量维数无关。
The new temperature updating function derived is inversely proportional to a power function of the annealing time and is independent of the dimension of the optimization problems.
退水量和地下水埋深之间近似为幂函数关系，与蒸发量之间近似服从线性关系。
The relationship between drainage water volume and groundwater table agreed with by power function, drainage water volume and evapotranspiration, a linear function.
然后根据各子序列的特性分别建立幂函数、周期函数或ARMA模型并进行预测。
Power function, periodical function, and ARMA model are established according to the characteristics of sub-series.
水分的脱盐效率随淋洗水量的增加呈幂函数减小，随入渗水矿化度的增加线性减少。
The water-desalting efficient decreased exponentially with increasing leaching water volume and linearly with water salinity.
研究了常压下甲醇气相法脱水生成二甲醚的宏观动力学，得到幂函数型动力学方程。
Global kinetics of methanol dehydration to dimethyl ether by gas phase method were studied under atmospheric pressure and power type kinetic equation was obtained.
模型优化结果表明：在所有参与模拟的树冠生长的阶跃模型中，以幂函数模型为最优。
The optimizing model results show that the power model is the best one in all models tested.
用幂函数模型描述的回归曲线以及根据试验参数得到模拟曲线与试验值比较误差均较小。
The errors of the data obtained using the power function model are very small from the test data.
用幂函数模型描述的回归曲线以及根据试验参数得到模拟曲线与试验值比较误差均较小。
The errors are less as comparing the test data with regressive curve and simulative curve from test parameters using the power function model.
常用的适应度函数的设计方法有线性变换法、幂函数变换法、指数变换法和方差调整法等。
In designing methods of fitness function there are many ways, for examples: linear transformation, power transformation, index transformation, variance adjustment, etc.
方法：利用10种曲线模型（指数模型、对数模型、幂函数模型等）拟合疟疾发病率曲线。
Methods:Adopting 10 kinds of curve fitting models, such as power model, index model, logarithm model and ect, to fit the curve of incidence of malaria.
另外，植被恢复过的矸石山土壤水分入渗速率随入渗时间的增加而减小，呈幂函数递减规律。
Furthermore, with the infiltration time increasing by power function, the soil's infiltration velocity of re-vegetation in coal waste piles decreased.
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