The results show:from the midstream to downstream,the difference product curves of hydrological stations are rising at first,then continually going down.
研究结果表明:随着从上游至中下游的顺序,各水文站年径流量差积曲线先上升,而后呈长时期连续下降的趋势,而且顺河流方向越往下,曲线的坡度越明显,即径流量减少的趋势越明显,但黑河干流上游地表径流在过去的几十年里并没有减少,且有一定程度的增加,这说明各水文站径流的差积曲线主要是由于人类活动的影响,导致下游生态环境受损。
Bearing capacity of normal section for bridge calculated by curvilinear integral;
用曲线积分计算桥梁正截面承载能力
The application of symmetry to the calculation of curvilinear integral and camber integral;
对称性在曲线积分及曲面积分计算中的应用
This paper studies the curvilinear integral∮ L[xn-1yn-1(-ydx+xdy)]/[x2n+k2y2n]where L is a sectioned smooth and no multiple points closed curve, n is some natural number, k is some positive number.
本文研究曲线积分(?)(x~(n-1)y~(n-1)(-ydx+xdy))/(x~(2n)+k~2y~(2n)) ,其中L是公段光滑无重点的闭曲线,n为某一自然数,k为某一正数。
According to monitoring of and analysis on a large quantity of survey data of socioeconomic progress from Xiaolangdi and Shanxi reservoir resettlement using accumulative curve, this article gives quantitative analysis on the family income and livelihood level before and after relocation.
通过小浪底水利枢纽移民及浙江温州珊溪水利枢纽工程移民的社会经济发展本底调查和监测评估的大量调查资料 ,采用累积曲线方法 ,对水库移民家庭搬迁前后的收入和生活水平进行了定量分析。
Application of the Symmetry in the Calculation of Curvilinear Integral and Surface Integral;
对称性在曲线积分和曲面积分计算中的应用
The application of symmetry to the calculation of curvilinear integral and camber integral;
对称性在曲线积分及曲面积分计算中的应用
Application of Odevity and Symmetry in Curvilinear Integral and Surface Integral;
奇偶性对称性在曲线积分和曲面积分中的应用
Application of Newton-Lebniz formula in plane curve integral and space curve integral.;
牛顿-莱布尼茨公式在平面曲线积分和空间曲线积分中的应用
A Curvilinear Integration Method to Solve the Mixed Problem of Wave Equation;
求解波动方程混合问题的曲线积分法
On the asymptotic properties of the betweenness point of the mean value theorem for first form curve integral;
曲线积分中值定理“中间点”的渐近性
The Breakthrough of Teaching the IMfflculties in Curve Integral and Curved Surface Integral;
关于曲线积分和曲面积分教学中几个难点的突破
The Application of Differential Equation of Second Order in the Irrelative Path s Curvilinear Integral;
二阶微分方程与路径无关的曲线积分的解
On Asymptotic Property of the Mid-Point of Mean Value Theorem for First Form Curvilinear Integral;
第一型曲线积分中值定理“中间点”的渐近性
On the Asymptotic Properties of the Intermediate Point in the Mean Value Theorem for First Form Curve Integral;
关于第一类曲线积分中值定理“中间点”的渐近性
A distribution curve in which the frequencies are cumulative.
累积曲线用以累计频率的分布曲线
The graph of the antiderivative of the function is called the integral curve of.
函数的原函数的图形称为的积分曲线。
A Kind of Special Curve Singular Intergral Equations with Hilbert Kernel
一种特殊曲线上的Hilbert核奇异积分方程
Some kind of usual specific surface distribution curve and accumulative total porous volume distribution curve model of coal reservoirs in the basin are summarized in this paper.
总结了鄂尔多斯盆地煤储层几种常见的比表面积分布曲线及累计孔体积分布曲线模型。
The Stability of Singular Integral with Its Kernet Density in H_w~v(E);
核密度为H_w~v(E)类时开口弧段上奇异积分关于积分曲线的稳定性
This paper introduces Averaging arch area property of conic.
本文介绍圆锥曲线中平分弓形面积的一个性质.
Study on Three-Dimensional Multi-Level Hydrodynamic Model with Curvature Correction in Curvilinear Coordinates;
曲线坐标系下水动力多层积分模型研究及应用
Bend-ray Kirchhoff Prestack Time Migration and Parallel Computing;
弯曲射线Kirchhoff积分叠前时间偏移及并行实现