The main function of orbit calculation is to simulate the flight procedure of spacecraft, before that, the dynamics model of orbit must be established.
轨道计算主要用来模拟飞行器的飞行过程，前提是建立动力学模型。
Chapter 3 analyzes numerically the effects for orbit calculation caused by orbital perturbation, parameter error and so on. A precise mathematical model of orbit calculation is given.
第三章通过数值法分析了各项轨道摄动和参数误差等因素的对轨道计算的影响，给出了精确的月球探测器轨道计算数学模型。
By mathematical calculation and using a copying fixture, the orbit of movement of an end-milling form cutter is obtained.
通过数学计算与使用靠模夹具，求得铣削回珠器回珠槽指状铣刀的运动轨迹。
Calculation of the scenario when the brilliant pebble attacks the geosynchronous orbit satellites is also presented.
对智能卵石攻击同步轨道卫星的想法进行了计算和分析。
Expatiated on the application theory of basic orbit, including subastral point calculation, visibility analysis, coverage evaluating and spacecraft life-span estimate.
阐述了基本轨道应用分析理论，包括星下点轨迹计算、可见性分析、覆盖评估和轨道寿命估算。
Some parameters such as molar refractivity, frontier orbit energy, dipole moment, atom net charge of triazines were obtained by using the method of quantum-chemistry calculation.
通过量子化学计算方法得到三嗪化合物的摩尔折射率、前线轨道能量、偶极矩、原子静电荷等参数。
Circular arc well section parameter calculation is the most primary question among a series of questions of directional orbit design and actual surveyed trajectory.
在定向井轨道设计、实钻轨迹监控等一系列问题中，圆弧井段参数计算是一个最基础的问题。
The method of designing special elliptic orbit which was critical inclined, sun synchronous and repeating ground trace was expounded, and the calculation process of this method was summarized.
阐述了临界倾角太阳同步回归轨道这种特殊椭圆轨道的设计方法，总结了其轨道要素的计算步骤。
This paper introduces methods of calculation the initial orbit of the satellite only with the velocity vectors of two epochs.
本文介绍了仅用卫星两个时刻速度向量计算卫星初轨的方法。
According to this difficulty, a kind of fast calculation method of satellite orbit-extract the orbits control points is put forward, and perspective frustum is combined to judge the orbits visibility.
针对这一难点，提出了一种卫星轨道快速计算的方法-提取轨道的控制点，结合透视裁剪体来判断轨道的可见性。
This method is very powerful especially for problems concerning space debris mitigation that require a large amount of calculation of the satellite orbit lifetime.
在诸如空间碎片减缓这种需要非常大量的计算卫星寿命的问题中，新方法的价值得到充分体现。
In this paper, a Scalar Eelativiatic Green's Function method (SRA-KKR) neglecting spin-orbit coupling effect has been proposed for the energy band calculation.
略去自旋轨道耦合效应，在标量相对论近似下本文提出了一个近似的、相对论格林函数电子能带结构计算法。
It also explores the method of the design calculation for the inside and outside orbit.
对内外曲轨的设计计算方法进行探讨。
It is concluded that the calculation accuracy of the orbit thruster plume infrared radiation is improved when taking account of the influence from the nozzle expanding segment.
得出结论：在考虑喷管扩张段辐射的影响下，能够很好地改善轨控推进器尾焰红外辐射的计算准确性。
The theoretic analysis and simulation result showed that this control law had high orbit rendezvous precision with little calculation, which could realize fast and automatic orbit rendezvous.
理论分析和仿真结果表明，该控制律的交会精度较高、计算量小，可实现轨道交会控制的自主性和快速性。
Finally, as an example, calculation has been made for an infrared spectrometer on board a polar orbit meteorological satellite.
最后以极轨气象卫星上的红外分光计为例进行了计算。
Finally, as an example, calculation has been made for an infrared spectrometer on board a polar orbit meteorological satellite.
最后以极轨气象卫星上的红外分光计为例进行了计算。
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