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轨道计算

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In order to derive the 〓 interaction, wegeneralize the Fierz transformation from SU(N ≤ 4) scalar and pseudoscalar to SU tensor and point out that the 〓 interaction may beuseful in an extended quark potential model calculation.

为了理解在重子中存在着的自旋-轨道力的压抑,我们用微扰QCD的方法推导了四阶夸克-夸克之间的相互作用,并提出了用费曼图技术去计算非协变的含时微扰图的方法。

By using the classical Hamilton canonicl equation,the semiclassical closed orbits are obtained,which make it possible to calculate the molecular recurrence spectra.

利用哈密顿量的经典正则方程,我们还得到各通道的经典闭合轨道,从而为NO分子回归谱的计算做好准备。

Firstly, function generator is used to generate all kinds of different frequencies pulses which exactly simulate the given speed of critical axis when it works. Then PC gives the position command, the NiosII deals with the trace which we expected and then gives an order which is needed by the linear motor during one shog.

首先利用函数发生器产生不同频率的脉冲来精确模拟主轴运动时的给定速度,然后在PC机上下达坐标指令,由NiosII软核处理器对所定义的轨道运算处理后,计算出直线电机在一个横移内所需要的位移命令。

SailAway - Sail Away is a solar sail structure and flight simulator with accurate accounting for orbit and structural details.

SailAway是一个太阳帆结构和飞行模拟器,带有精确计算的轨道和结构化细节。

We are the first in China to apply the recent " universal variables " concept to the orbit designing of deep space probe .

给出了利用普适变量法来求解飞行时间,开普勒问题和高斯问题的计算方法,将这些方法用于深空探测器的轨道设计,针对不同要求提出了 3种改进设计的方法,对每种方法的适用范围进行了详细的分析。

In the method, the orbit of targets and the radar coordinates and parameters are put to calculate attitude and dynamic parameters of targets in line of sight. And then the dynamic data are generated according to the electromagnetic modulation model of the movement of targets including motion at high speed, spin, precession on electromagnetic wave.

该方法首先确定目标的轨道和雷达的布站坐标及工作模式,而后计算目标在雷达观测视线(line of sight, LOS)方向上的姿态和运动参数,最后根据空间目标高速运动、自旋、进动等在电磁波上调制的数学模型生成动态测量数据。

The safety concept of the space rendezvous is improved, and several rendezvous strategies are given; Based on the rendezvous dynamic stochastic model, the computational equations of the collision probability are given and analyzed, and three kinds of simple models of collision avoidance are given.

3完善了空间交会安全性概念,提出了几种提高空间交会安全性的策略;基于交会动力学随机模型,推导了碰撞概率的计算模型,分析了绕飞时不同因素对碰撞概率的影响,提出了利用碰撞概率模型对不同类型轨道碰撞规避策略进行设计的简单方法。

Results show that hydroxyl group existing in benzene ring, sulfanilamide being adjacent to hydroxyl group and benzene ring itself are main active sites of this kind of compounds probably. Orbit energy distributing on groups and the number of net charge of N atom determine compounds' insecticidal activity directly.

计算结果表明,该类化合物中苯环上的羟基、羟基相邻的磺胺基团以及与该苯环的组合很可能是该类化合物的主要活性部位,分布在基团上的前线轨道以及N原子的净电荷的多少直接决定化合物的杀虫活性。

Based on the previous work, two expansion formulas of fully symmetric wave function for describing three bosons in different orbits are obtained, which can be used to calculate the nuclear specturm.

在前人已有成果的基础上,给出了三玻色子在不同轨道上时全对称波函数的非对称展开式,这种展开式可直接用于核潜的计算。

In view of the practice of precise orbit determination and parameter solution, the difference algorithm to compute state transition matrix is proposed.

根据精密定轨和参数解算的实际需要,提出用差分算法,即通过两条很接近的轨道的差来计算状态转移矩阵。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。