抗渗强度与干容重呈双曲线函数关系。
The relation between piping resistance and dry density may be expressed by a hyperbolic function.
在水泵的选型或运行中，通常采用多项式的最小二乘法或根据假设的函数关系来拟合水泵性能曲线。
Least square method of polynomial or the method based on the given function are used to fit pump characteristic curve in pump selection or operation.
需求曲线——一个关联到商品数量或服务消费者愿望的与这个商品购买价格关系的函数。
Demand curve — a function that relates the quantity of a commodity or serve consumers wish to purchase to the price of that commodity.
这种耦合关系在其演化周期内呈现出双指数函数的变化规律，其耦合演化轨迹是一条双指数曲线；
This kind of coupling relation takes on a double-exponential function changing law, and the evolutive track of the interaction between urbanization and eco-environment is a double-exponential curve.
同时利用父类与子类间数据成员、成员函数的继承关系，可以优化曲线测设程序的整体设计。
Moreover, it can optimize the whole design program by making use of inheritance relations of data members and member functions between the basic class and its derived class.
采用回归分析方法建立了参数与土壤物理特性间的函数关系，为采用土壤颗粒组成等土壤物理特性确定土壤水分特征曲线提供了指导。
A fitted relationship between the parameters and the soil texture was established, with which the model parameters of soil water retention curves can be predicted by the soil physical characteristic.
经典微分几何研究三维欧氏空间中曲线曲面理论，其最具有特色的研究是主曲率函数满足某些关系的魏因加吞曲面。
In the classical differential geometry which deals with the theory of curves and surfaces of three dimensional Euclidean space, the most distinctive study is the Weingarten surface.
通过工程预算得到不同工艺不同规模的处理方案的总费用，通过曲线拟和得到不同工艺的费用和规模的函数关系式。
This essay shows the whole expense of the different treatment schemes through the project budge, and USES curves to obtain the mathematical models of different technical charges and scales.
指数函数可用来表达水力传导率和孔隙水压力的关系，及土水特征曲线。
The permeability coefficient and pore-water pressure relationship, and the soil-water characteristic curve are represented using exponential functions.
并以微机中的高分辨作图功能绘制函数关系曲线图。
The functional relationship graphics are plotted by the microcomputer automatically.
从非饱和土土水特征曲线方程出发，根据渗透函数和土水特征曲线的关系，推导出了非饱和土渗透函数方程。
Based on the equation of soil water feature curve and the relationship between soil water feature curve and permeability function, the permeability function equation of unsaturated soil is derived.
根据实测软土基坑坑侧最大位移与时间关系资料，经统计分析建立了3种有代表性的位移与时间(挖深)的双曲线函数。
According to the data statistics of Max transformation aside of pit to time, the paper established 3 typical hyperbolic function of displacement to time (depth).
为了更准确地描述树高与直径的关系，文章综合分析了广泛应用于林窗模型中的四个数学方程，即二次曲线、幂函数方程、理查德方程和单分子方程。
Parabolic curve function, power function, Richards equation and single molecular equation, related tree height to diameter at breast height and widely used in forest gap model, were analysed.
应力-应变等时曲线线性回归函数的相关系数均高于0。
The correlative coefficients of linear regression function for isochronous stress-strain curve are all higher than 0.
通过实验，得到供气压力与气膜刚度之间的拟合曲线，并用回归分析法，建立两者函数关系的经验公式。
The fitted curves for air supply pressure to the stiffness of gas film obtained from tests are plotted, and empirical expressions for these curves worked out by regressive analysis are given.
论证了两曲面的交线为空间曲线，其方程为一元四次隐函数关系式；
It is proved that the intersecting line of the two curved surface is space curve, and the equation is quartic implicit function with one unknown.
结果表明：在海洋飞溅区模拟条件下，涂层试样和基体试样的腐蚀失重与试验时间的关系曲线遵循幂函数规律。
Results showed that the relationship between weight loss of coating sample, substrate sample and exposure time obeyed with power function in the simulated conditions of the marine splash zone.
研究了函数的一阶右导数与函数凸性的关系，给出了二个定理，把曲线凸性判定定理加以推广。
This paper discusses the relationship between the 1-stage progressive derivative and function convex, and two principles are presented, the curve convex judging principle is finally extended.
不同林分的抗蚀指数与时间的动态模拟关系为二次幂函数曲线，相关系数0.9以上。
The analog equation between soil erosion resistance index and time is quadratic power function curve, whose correlation coefficient is above 0.9.
但二次多项式只能拟合x坐标与Y坐标之间成函数关系的点序列，无法拟合闭合曲线。
But the quadratic curve can be used only in condition when each X-coordinate of the points sequence mapping to only one Y-coordinate, so it can't be used in fitting closing curve.
结果表明，非饱和黄土的水分特征曲线可用幂函数关系描述；吸着水含量与毛细管水含量随基质吸力的增大而减小；基质吸力由吸着力和毛细管力形。
The water content of attraction and capillary decreased with the increase of the matrix suction, which consisted of attraction and capillary powers.
结果表明，非饱和黄土的水分特征曲线可用幂函数关系描述；吸着水含量与毛细管水含量随基质吸力的增大而减小；基质吸力由吸着力和毛细管力形。
The water content of attraction and capillary decreased with the increase of the matrix suction, which consisted of attraction and capillary powers.
应用推荐