查询词典 hyperbolic orbit

Yesterday 13:40, readers Poon provide clues to the Morning News said orbit 1st line Huangpinalu station a sudden accident, a man was the train roll over on side into orbit, resulting in the direction towards the Shanghai Railway Station 1st Line train temporarily interrupted.

昨天下午1时40分，读者潘先生向晨报提供线索称，轨道一号线的黄陂南路站发生突发事故，一名男子被列车辗入轨道，导致开往上海火车站方向的一号线列车暂时中断。

Since geostationary satellite s orbit inclination is equal to zero approximately,it will result in the ambiguity of satellite s orbit ascending node and the singularity of the normal matrix in the process of fitting.

针对静止轨道卫星轨道倾角近似为0，致使卫星轨道的升交点定义模糊，在数据拟合过程中会导致法矩阵奇异的问题，提出对卫星轨道进行轨道倾角变换拟合广播星历参数的方法，并获得较高的拟合精度。

A method to calculating maneuver for special point maneuver strategy is developed based on the facts that are single objective of every maneuver and tiny correction for orbit inclination and right ascension of ascending node. The basic idea of the method is disassembling calculating for phasing and orbit plane correction, and the equation for calculating maneuver is derived.(2) A method for determining the optimal collision avoidance maneuver is developed, and the two phasing orbits strategy is developed to avoid collision with debris.

1研究了远距离导引的特殊点变轨策略，针对特殊点变轨策略每次机动目标单一和轨道面修正为小量的特点，提出了将轨道面内调相与轨道面修正分解计算的策略，推导了采用高精度轨道模型的调相和轨道面修正机动计算公式；(2)研究了远距离导引段飞行器规避空间碎片的机动问题，提出了一种双调相轨道机动策略，并给出了碰撞规避机动的计算公式。

If that orbit is also in the plane of the equator, the satellite will hang in the sky over a fixed location in a geostationary orbit.

如果那轨道也是在地球赤道的飞机中，卫星将威胁一在一同步轨道中的固定的位置在天空中。

Since there are some disadvantages, such as magnitudes, reference systems and difficulties in observing an asteroid during its motion in its whole orbit, etc., when the asteroid is observed simply by means of the meridian or photograph methods, a new method for observing asteroids with a lower latitude meridian circle and a CCD measuring device is proposed according to the conditions of the geographic latitude of the Yunnan Observatory which can be used to observe the whole orbit of an asteroid.

考虑到单纯用子午方法或照相方法对小行星进行观测存在着因星等、定标星系统，以及难于在小行星运行全轨道上进行观测等方面的不利因素，在本文中，根据云南天文台能观测小行星全轨道的地理纬度条件，提出利用低纬子午环与CCD测量装置相配合，并利用低纬子午环直接提供的定标星，在一个统一的基本仪器系统中，通过对小行星在全轨道上均匀分布的观测，获得高精度的小行星观测资料，以便得到更准确的星表零点改正。

Launched into Earth's orbit by an Ariane-5 booster rocket from Kourou, French Guiana, in September 2003, SMART-1 used its ion engine to slowly raise its orbit over 14 months until the moon's gravity grabbed it.

2003年9月，&智能1号&探测器从法国圭亚那地区的库鲁基地由Ariane五号火箭发射升空，在其离子引擎的推进下，&智能1号&缓慢脱离运行轨道，在14个月后进入月球重力场。

Based on the crystal field theory, perturbation formulas of the spin Hamiltonian parameters g-factors (fourth-order) and the hyperfine structure constants (third-order) of 3d9 ions under tetragonal symmetry are established for the cases of small spin-orbit coupling coefficients and large spin-orbit coupling coefficients of the ligands.

本文基于晶体场理论，在较统一的理论模型和计算方法基础上运用微扰法分别对配体旋轨耦合系数较小和配体旋轨耦合系数较大的情况建立了3d9离子的自旋哈密顿参量g因子的四阶微扰公式和A因子的三阶微扰公式。

Large initial state error and non-Gaussian distribution of state may exist in the deep-space autonomous celestial navigation, so based on the classic six orbit elements, an orbit determination method for deep-space probe is proposed by using starlight angle as measurement information and the unscented particle filter algorithm.

针对深空自主天文导航中可能存在初始状态误差较大、状态分布非高斯分布等问题，基于轨道6根数描述形式，提出了利用星光角距观测信息和UPF算法确定探测器轨道的方法。

The spacecraft uses a bipropellant integrated propulsion system to reach lunar orbit as well as orbit and attitude maintenance while orbiting the Moon.

该航天器采用一个整体的二元组推进系统进入月球轨道和维持轨道高度及状态。

There are several examples of the advection, hyperbolic system and wave problems discussed in this present work.

数值结果皆与解析解或数值解比对结果良好，证明本文所提出的无网格数值方法对於波动问题具有高度精度、一致性与效率。

Yet, Edith says, there was always money in the bank.

但是Edith说，她的银行户口里面总是有钱。

We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.

我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。