轨道周期

对地观测卫星轨道具有全球目标覆盖和太阳同步两种特性，通过设计轨道周期和轨道倾角可以获得这些特性。

Global coverage and sun synchronization are the essential properties of the earth observation satellites , which are assumed by designing the orbit period and inclination .

从宁静期的CCD快速测光，得到它的轨道周期为0.0575±0.0026天。

CCD time - resolved photometry showed a possible orbital period 0 . 0575 ± 0 . 0026 day .

密近双星轨道周期的准周期／不规则变化（典型的相对变化幅度为△P／P-10-7-10-5）也只能用磁活动来解释。

Quasi-periodic / irregular orbital period variations ( with typical relative amplitude of △ P / P - 10-7 - 10-5 ) can be only explained by magnetic activity .

计算结果表明，潮汐作用使轨道周期较小的Ba星系统的能量减小，所以系统轨道的半长轴和轨道偏心率减小；

The results show that tidal friction diminishes the total energy of binaries systems with shorter orbital periods .

RsCVn型密近双星的轨道周期分析

On the Orbital Period Variations of RS CVn-type Binaries

半相接双星室女座UW轨道周期变化的物理机制研究

The Investigation of Physical Mechanisms for Orbital Period Changes of the Semidetached Binary UW Vir

收集了近相接双星BFVir的光极小时刻，并对其轨道周期进行分析。

All the published moments of light minima of the near contact binary BF Vir have been compiled and the changes of orbital period have been analyzed .

密近双星44iBoo的光变起伏及轨道周期的变化

The Variations of the Light Curves and the Orbital Period of the Close Binary 44i Boo

我们在双星演化程序中加入了吸积盘不稳定性的因素，并采用最新的白矮星表面的H和He稳定燃烧的条件，以此未跟踪不同初始质量和轨道周期的白矮星双星的演化。

We include the effect of unstable accretion disk to binary evolution code , and the latest description of H and He burning condition at the surface of white dwarfs to follow the evolution of white dwarf binaries with different initial masses and orbital periods .

通过对WUMa型相接双星ABAnd、AMLeo、AKHer和APLeo的轨道周期研究，我们得到它们的物质转移率约为10~（-8）M⊙／yr。

We obtain their mass transfer rate to be about 10-8 M o / yr by studying period variations of W UMa type systems AB And , AM Leo , AK Her , and AP Leo .

这类系统一般有着从射电到TeV伽玛射线的多波段辐射，且各波段的光变曲线是随轨道周期性变化的。

The gamma-ray pulsar binaries usually emit multi-band radiation , i.e. from radio to TeV gamma-rays , and the light curves are modulated on the orbital periods .

MEO和IGSO卫星在一个轨道周期内星历参数拟合结果的变化规律相近，但是与GEO卫星的差异较大。

It also shows that the variety laws of the fitting result of broadcast ephemeris for MEO and IGSO satellites are similar to each other and are different to GEO satellites .

最后简介目前搜寻PSR-BH系统的现状和我们搜寻短轨道周期脉冲双星的计划。

Finally , current status of searching for PSR-BH systems and our plan on searching for short orbital-period binary pulsars are briefly introduced .

被扔的三明治的，轨道周期是多少？

What is the orbital period of the sandwich after the throw ?

考虑轨道周期性不平顺的磁浮列车悬浮控制系统设计

Suspension Controller Design of Maglev Train Considering the Rail Track Periodical Irregularity

每年它们的轨道周期会缩短0.3毫秒。

Each year their orbital period shrinks by 0.3 milliseconds .

轨道周期转型时间及模式分析

Study on Time and Mode of Middle Pleistocene Transition

理论上证明了要长期近距离编队卫星轨道周期必须相同。

The analysis proves that the orbital periods of formatted satellites must be equal .

双星，轨道周期是，5。6天，进行对供体星的。

Cygnus X-1 is an x-ray binary which has an orbital period of5.6 days .

各大行星的轨道周期，不尽相同。

The time to go around the sun is not the same for all planets .

月亮轨道周期与世界著名河流的洪水

Orbit Periods of the Moon and the Large Floods of Some Famous Rivers in the World

当涡旋都沿着某一封闭的轨道周期性地运动，这意味着该涡旋团簇是稳定的。

When vortices move periodically along some fixed and closed orbits , vortices clusters are stable .

由天体轨道周期变化引起的气候变化被广泛地记录在沉积地层中。自然伽马曲线很好地反映了气候变化引起的地层旋回。

Climate changes caused by orbital are widely recorded in sedimentary record and reflected by Gamma-ray logging data .

光变曲线的这种变化和该源所表现出的轨道周期变化都有可能是磁活动的结果。

The variations of the light curves and orbital period may both arise from magnetic activities . 5 .

轨道周期的长期减小成份可能是由于该系统质量和角动量损失引起。

The secular period decrease may be caused by the mass and angular momentum losses of the system .

地球轨道周期正在造成自然的冷却趋势，尤以北方高纬度地区为最。

The earth 's orbital cycles were driving a simultaneous natural cooling trend , especially at high northern latitudes .

对于得到的数据集，我们所负责的脉冲星搜索，其目标主要是寻找轨道周期长于11分钟的脉冲双星。

In these data sets , our pulsar search aims to find binaries with orbital periods longer than eleven minutes .

此外，这两个相接双星的轨道周期还表现出了周期性的变化成分。和变化的黑子一样，轨道周期的这种变化，也可能是由磁活动引起的。

Moreover , the orbital periods of the two contact binaries show cyclical oscillations , which may arise from magnetic activities just as the dark spots do . 4 .

知道周期，知道远地点，和近地点在哪里，知道轨道周期-，知道了想知道的一切。

We know the period , we know where apogee is , we know where perigee is , - we know the orbital period & anything we want to know .

对话框左边的目录显示了当前数据文件中的卫星名称及其按分钟计算的轨道周期。

The list on the left side of the dialog shows the names of all the objects in the current data file , together with each object 's orbital period in minutes .