查询词典 orbit

The simulation results verify the validity of the present approach. The conclusion has no restriction on the eccentricity of the initial elliptic orbit, and fits for the situation of initial elliptic orbit with large eccentricity.

数值仿真表明：所提出的方法能够确切描述卫星可达范围的边界，所得结论对初始椭圆轨道的偏心率没有限制，可以用于单颗卫星机动范围的评估和不同卫星间安全距离的设计。

Elliptic orbit ; Tetrahedron configuration ; Formation flying ; J2 perturbation ; Orbit optimization design

椭圆轨道；四面体构形；编队飞行； J2项摄动力；轨道优化设计

The orbit of the equatorial satellite is designed with perigee at 550km, apogee at 60 000km, and the inclination of 28.5°; the orbit of the polar satellite is designed with perigee at 700km, apogee at 40 000km, and the inclination of 90°.

近地赤道区卫星的轨道是：近地点550km左右，远地点60000km左右，倾角约28.5°；近地极区卫星的轨道是：近地点700km，远地点40000km，倾角约90。

Therefore this imaging system can realize two kinds of X-ray radiology: reverse geometry X-ray and X-Scan imaging, and several CT scanning methods, such as equiangular fan-beam CT, equispatial fan-beam CT, helical/spiral CT, cone-beam CT with circle orbit, cone-beam CT with circle-plus-line orbit.

这样就可以实现倒置结构的X射线成像方法、等角扇束的扫描方法，以及本文所提出的凹面源加点探测器的锥形束扫描方法，而且还避免了使用成组点探测器带来的性能不一致性。

The non-relativistic energies and wave functions were determined by Rayleigh-Ritz method. The relativistic effects, including the correction to kinetic energy, the electron-electron contact term, and the orbit-orbit interaction, Darwin term, and mass-polarization effect on the energies were calculated by using first-order perturbation theory. In order to obtain a more accurate result for the larger Z system, the quantum-electrodynamics correction should be included. This correction to energy can be evaluated for the valence electron by using a hydrogenic formula with an effective nuclear charge, Z. The ionization potential, the excitation energies and the fine structure split-tings for a lithium-like ion with higher nuclear charge (Z=26) were calculated.

非相对论能量用Rayleigh-Ritz变分法确定，包括动能修正、电子—电子接触项、轨道—轨道相互作用项以及Darwin项的相对论修正和质量极化项由全实加关联波函数的一阶微扰给出，量子电动力学修正由有效核电荷方法和类氢公式计算；给出了较高核电荷(Z=26)类锂体系1s^2nl组态的电离能、激发能和1s^2np组态的精细结构劈裂。

In 1988 a lacrimal gland tumor was incompletely removed from the left orbit of a 36-year-old woman and diagnosed as "solid basaloid adenoid cystic carcinoma". Soon after, an exenteration of the orbit was performed. In 1998, upon review of the initial histopathology, the diagnosis of solid adenoid cystic carcinoma was changed to basal cell adenocarcinoma..

方法；1988年一个36岁的妇女的泪腺肿瘤从左眼眶不完全摘除，诊断为"实质性基底细胞囊腺癌"，不久进行了眼眶内容去除术。1998年对原始的组织病理学进行回顾，实质性基底细胞囊腺癌被更正为基底细胞腺癌。

Choosing Huzigou as the experimental site, the elevation, azimuth, hour angle and so on of the surrounding undulating terrain was measured. The solar visual orbit map was developed and the solar visual orbit equation was applied to calculate the solar elevation angle of morning shelter and dark shelter and the sunshine hours.

方法］选择户子沟为试验点，实地测量周围起伏地形的仰角、方位角、时角等，绘制太阳视轨道图，应用太阳视轨道方程，计算出晨蔽、昏蔽太阳高度角，进而计算出日照时数。

The orbit of Iapetus is also unusual, being tilted to the plane of Saturn's orbit by an unusually high fifteen degrees.

Iapetus还有其他无法解释的特征：Iapetus的发光部覆盖着无法说明的细长的经脉；Iapetus的运行轨道也很奇特，相比土星轨道平面，异常的高了15度。

It proposed the method of adjustment and optimization of the peripheral truss net surface integrating distance weighted factor and the genetic algorithm based on-orbit thermal environment for the first time, Optimization adjustment simulation of the net surface has been carried based on-orbit thermal environment for the large deployable antenna.The research of thermal analysis technology in this article would provide more scientific foundation for thermal design of antenna on satellite, it would greatly improved thermal design level for satellite antenna of our country, the thermal optimize design which were based on those would effective reduce the costs of test.

本文所完成的热分析技术的研究能够为星载天线的热设计提供更科学的依据，可大大提高我国星载天线热分析的水平，以此为基础的热优化设计可以有效的减少试验费用。

We review the recent progress in the research on spin-orbit coupling and intrinsic spin Hall effect in semiconductor microstructures, including a detailed discussion of the physical origin of spin-orbit coupling in semiconductor microstructures and the intrinsic spin Hall effect in narrow-gap semiconductor quantum wells.

本文主要评述和介绍半导体微结构中自旋轨道耦合的研究和最近的研究进展。我们细致地讨论了半导体微结构中自旋轨道耦合的物理起源和窄带隙半导体量子阱中的自旋霍尔效应。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。