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中心差分

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During the process of numerical approximations, the difference formula of time transient terms, and the central/upwind difference expressions for acquiring boundary value are chosen.

在方程离散过程中,给出了时间瞬态项的差分格式以及求解边值的中心和上风差分格式。

So we need consider the effects of the earth curvature. In global integration, the requirement of the data coverage and the computation are comparative high. In this thesis, a moving coordinate system is used to overcome the effects of the earth curvature. And a differential calculation concept is proposed that assumes the difference of geoid calculated between the central point and its marginal point is constant when the integration area is far away from the central point.

论文中提出了利用柱体积分时采用移动坐标系来顾及地球弯曲的影响,并利用差分的概念,设想离计算区域到一定距离后,流动点对计算区域内的中心点和边缘点的影响之差为一常数,并用试验的方法,统计分析了它们对大地水准面的有效积分拓展范围。

This paper discusses the Western sources of the methods employed in the Lixiang Kaocheng Houbian (Later Edition of the Established System of Calendrical Astronomy) to resolve the Kepler Equation in calculating the solar and lunar equations of center.

研究《历象考成后编》中求解刻卜勒方程以计算日月中心差的方法的来源及其精度,同时对书中日月理论的总体精度进行分析,发现:书中用于太阳和月亮中心差计算的方法分别是薄利奥和卡西尼方法的简化版本。

A 2-port S-parameter measurement with the center-tap grounded is used to extract the equivalent resistance,inductance,and Q-factor.

提出了中心抽头差分电感的中心抽头等效模型,对其差分应用时的单端和差分阻抗进行推导,利用两端口S参数测试提取出等效电阻值、等效电感值和品质因数。

A modified differential evolution algorithm was presented. In the proposed algorithm, the difference vector, which is employed in mutating each individual by simple differential evolution algorithm, was recorded. Each mutated individual was taken as the center of a neighborhood, the corresponding difference vector as radius.

提出了一种改进的差分演化算法,该算法记录下了差分演化算法在对每个个体进行变异操作时的差向量,然后以被变异的个体作为邻域的中心,以所记录的差向量作为邻域的半径,再在这个邻域内进行一次挖掘式的搜索。

It is just what it sounds like - a 1/8 center differential with an integrated slipper clutch .

这是什么样的,它听起来就像-一个1 / 8中心差分的综合拖鞋离合器。

Its discretization is based on spectral elements in space and central differences method in time. The numerical result, shows that this approximation has spectral accuracy in space and up to second-order in time.

该解法引入一阶Clayton-Engquist-Majda吸收边界条件,在空间上利用谱元方法,在时间上利用中心差分的积分方法得到波动方程的离散形式,并给出具体算例进行了验证。

While the Jeep Wrangler has the "rock-crawler" market locked up as tight as its center differential in four-low, the "expedition" and "trekker" markets are all but ceded to Land Rover, which until very recently has offered larger, more practical, and far more comfortable vehicles to those that want to go not just anywhere, but everywhere.

虽然吉普牧马人的"岩石器"锁定了市场的紧张为中心差分四低,"远征"和" trekker "市场是一切,但割让给路虎,这直到最近提供了更大,更实用,更舒适的车辆,那些想要去的地方不只是,而且无处不在。

While the Jeep Wrangler has the "rock-crawler" market locked up as tight as its center differential in four-low, the "expedition" and "trekker" markets are all but ceded to Land Rover, which until very recently has offered larger, more practical, and far more comfortable vehicles to those that want to go not just anywhere, but everywhere.

虽然吉普牧马人的&岩石器&锁定了市场的紧张为中心差分四低,&远征&和& trekker &市场是一切,但割让给路虎,这直到最近提供了更大,更实用,更舒适的车辆,那些想要去的地方不只是,而且无处不在。

By using explicit central difference algorithm and finite element software ANSYS/LS-DYNA, the numerical simulation of involute spline shaft's cold-rolling forming was realized.

利用显式中心差分算法,借助有限元分析软件ANSYS/LS-DYNA,通过数值模拟,实现了花键冷滚轧成形过程的可视化。

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推荐网络例句

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。