轨道的

TIAN Wen-sheng（Chaigoubu Teachers School,Zhangjiakou 076150,China）Abstract:Taking account of δr≠0,through the equation of conservation of orbital angular momentum,orbital parameters equations on the mass change are re-deduced.

Ba星系统的星风吸积及污染因子刘俊红和仲池田文生摘要：用整个系统的角动量守恒条件代替切向动量守恒条件，且δr≠0，考虑轨道偏心率的高次项，推导了星风吸积质量及轨道参量变化方程。

Molecular orbital analysis, nucleus-independent chemical shift analysis and natural bonding orbital analysis showed that they have aromaticity or non-aromaticity.

通过分子轨道分析、核独立化学位移分析以及自然键轨道分析，说明B〓和B〓是具有三个π电子的非芳香体系；B〓是具有两个π电子的芳香体系。

Then, according to the physical imaging process, we developed the geometric collinearity equation of push broom sensor and the attitudes of sensor with the Kepler parameters of the satellite orbit.

其次针对单线阵推扫式传感器的成像几何，利用6个卫星轨道开普勒参数和3个传感器姿态角建立了推扫式卫星遥感影像与其地面点的关系式，即严格轨道成像模型。

The architecture for this system eventually foresees using five satellites in geosynchronous orbit and up to 30 non-GEO platforms.

这个系统的架构最终预计用上位于地球同步轨道和多至 30 颗非同步轨道平台上的 5 颗卫星。

Thearchitecture for this system eventually foresees using fivesatellites in geosynchronous orbit and up to 30 non-GEOplatforms.

这个系统的架构最终预计用上位于地球同步轨道和多至30 颗非同步轨道平台上的 5 颗卫星。

Orbital velocity and position of each of, for beginners who have some knowledge of the track usefulness.

详细说明：轨道根数与位置速度互化，对于初学轨道知识的人有一定的用处。

A GPS Doppler model was constructed by using geometric scalar analytic approach, considering the fact that observer is not necessarily on the ground trace of the satellite. In addition to the modeling and computation of orbital angular velocity, visible window of satellite, and the maximum elevation earth-centered angle, Doppler's characterization with regard to the observing time was deduced and analyzed.

采用几何标量分析方法，建立了地心地固坐标系中GPS信号多普勒频移分析模型，计算了卫星可见地心角、卫星轨道角速度和卫星可见区间，推导并分析了多普勒频移关于接收机最大可见仰角、卫星轨道角速度和卫星可见时刻开始所经历的时间等参数的变化规律。

Simultaneously, their quantum chemical descriptors, such as the highest occupied orbital energy, the lowest virtual orbital energy, dipole moment and molecular volume, are obtained.

同时得到相应的量子化学参数，如：分子最高占有轨道能、分子最低空轨道能、分子偶极矩和分子体积等，并将这些理化参数与有机染物的麻醉毒性参数相关联。

This will be reference to planning, design and construction of suburban rail transit station sites of metropolises.

将郊区轨道站点分为&7大类11小类&的分类方法，可以为大都市郊区轨道站的规划和制定设计标准提供参考。

Three aspects verifications show that the vertical and lateral vehicle/track model is correct and reasonable.

三方面的验证结果表明了车辆-轨道垂横耦合模型及其求解方法是正确合理的，从而为车辆-轨道垂横耦合模型的运用奠定了基础。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷