查询词典 integral

The integral equation is convergent for any conductivity distribution and frequency if iterative solvers are used.

提出一种应用迭代法求解新积分方程的迭代初值优化选择方法，并通过具体算例对比说明该方法可使频率域电磁测深三维模拟的计算效率得到有效提高。

Their application of convex body and geometry probability is the important theory in integral geometry and convex geometry, One can study the geometric invariants and geometric probability and other issues.

它们在凸体和几何概率中的应用是积分几何和凸几何的重要理论，通过它们可以研究几何不变量和几何概率等相关问题。

In this paper. we discuss the history origin of integral geometry, its product anddevelopment in the introduction. Also. the kinematic in-variant density formulas forpairs of needles and lines in R~2 and R~3 the concept and properties of chord-powerintegrals of a convex body are introduced in brief.

本文在绪论部分综述了积分几何与几何概率的历史渊源及它的产生与发展，简单介绍了R~2和R~3上点偶、线偶的运动不变密度公式以及凸体的弦幂积分的概念和性质。

First, We discuss the relationship between the width integral of convex body and dual quermassintegrals when i∈R, and we obtain Some inequalities and extremum properties.

我们获得了凸体i—次宽度积分的Blaschke-Santalo不等式，并建立了凸体i—次宽度积分Aleksandrov-Fenchel不等式的局部形式。

Based the new definition of double chord-power intergral which the pair of lines intersect the convex body in integral geometry, this paper studies the relationship of double chord-power intergral and chord-power intergral.

本文给出了积分几何中的最新定义：随机直线偶与凸体相交的双弦幂积分概念，利用积分几何的分析方法，研究了双弦幂积分的对称性，次可加性等性质及双弦幂积分与弦幂积分的相互关系。

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In this paper, taking the downward continuation of potential field as an inverse problem of upward continuation, we obtain a convolution type linear integral equation for downward continuation. Making use of the orthogonal symmetry characteristic of Fourier transform matrix, and combining the principles of singular value decomposition of matrix and generalized inverse, we proposed a stable generalized inverse method for downward continuation of potential field, called wavenumber domain generalized inverse algorithm, which doesn't need the computation for inverse matrix. It resolves the instability of potential field downward continuation of large depth.

本文通过把位场向下延拓视为向上延拓的反问题，得到向下延拓的褶积型线性积分方程，再利用Fourier变换矩阵的正交对称特性，并结合矩阵的奇异值分解和广义逆原理，提出了一种稳定的不需要进行求逆运算的位场向下延拓广义逆方法——波数域广义逆算法，解决了位场大深度向下延拓的不稳定性问题。

The convolution integral is quite important in signal processing, control theory, and dynamic electric circuit analysis.

各类教材对卷积积分的介绍和讨论卷积积分对于信号处理、控制理论和动态电路分析均具有重要意义。

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虽然，网络是虚拟的，但是我坚信热心人还是有的，有两段话想翻译成英文，谢绝软件翻译发上来。濮上生态园区位于濮阳市西郊，东接市高新技术开发区，西临大广高速，北依濮鹤高速，南临城市主干道黄河路，总规划面积382公顷(5730亩)，下辖绿色庄园、濮上园两景区，是一处集生态保护、园林观赏、休闲娱乐、野营度假、科普教育、林果科技示范诸功能于一体的综合性生态旅游度假园区。

Based on the rule that all the coordinate value of the basic vector is integral in coordinate plane, an algorithm for approaching the reference vector in coordinate plane was drawn out, which is easy to be realized by arithmetic and rounding operation.

本文根据基本矢量在两相坐标平面的坐标都是整数的规律，总结得到了在两相坐标平面下对参考电压矢量进行逼近的算法，该算法只需要进行简单的四舍五入与加减运算，易于实现。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。