低廉的花费，相对快速的几个月的公转周期使得微微卫星在教育方面上的价值无法估量。
The low cost and relatively quick turnaround time of a few months makes nanosatellites invaluable from an education perspective.
他们的卫星设计成能与人类沟通，也能编译信息进行周期传输回安置卫星的外星团体。
Their satellite was designed to communicate with man, as well as compile information for periodic transmissions back to the alien group which had installed it.
文章在分析了卫星轨道外热流和平均温度的周期分布后，对其温度进行了实时预测。
In this paper, satellites temperature is predicted on-line after the analysis to the cycles of orbital external thermal current and average temper a ture.
该技术在某小卫星中应用，能有效满足系统控制周期的限制和系统可靠性要求。
This technique is applied in small satellite, and satisfies the limitation of control cycle and reliability requirement of system.
速度差各分量的变化具有很明显的周期性且与卫星轨道的运行周期相吻合。
The variations of velocity difference have obvious periodicity, which coincides with the satellite orbit period.
本文从理论和实验的方法研究了具有周期热源变化的卫星不稳定热平衡问题。
A theoretical and experimental study of the unsteady thermal balance testing for the satellite with periodic heat source is presented in this paper.
编队卫星相对距离较大，非线性因素不可忽略时，利用非线性周期运动条件，可找到不需消耗任何燃料的周期性相对运动轨道。
When the relative range was large and the effects of nonlinearity could not be neglected, the nonlinearity periodic relative rotating orbits could be found using the nonlinearity initial conditions.
在极地圆轨道上工作的对地定向磁控小卫星，其动力学方程是一个线性周期系统。
The magnetic control system for polar orbiting, nadir pointing small satellite is studied in this paper. It is shown that the dynamics with magnetic control system is a linear periodic system.
目前SAR经常用于内波的研究，但是SAR也存在着卫星重访周期长、数据费用高、图像噪声较大等的不足。
SAR imagery are usually available at the present research, however SAR are deficient for the long revisit period, high expense and strong noise.
当受到损伤、运动刺激或机械牵拉，卫星细胞激活进入其细胞周期，并增殖、分化融合到邻近的骨骼肌纤维上。
But when muscle is injured, exercised, or mechanically stretched, these cells are activated to enter the cell cycle, proliferation, differentiate, and fuse with the adjacent muscle fiber.
通过对现有的卫星移动通信系统星间链路的分析发现，不但卫星移动通信系统星间链路的指向具有周期性变化的特性，而且星间链路的相对距离也在周期性变化。
Through the analysis of today's mobile satellite communication systems, it is found that not only the direction, but also the relative distance of the ISL are periodical.
由于地磁场的方向在轨道上周期变化，卫星的姿态动力学方程是一个线性周期系统。
Since the geomagnetic field varies periodically on orbit, the dynamics of satellite is a linear periodic system.
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.
卫星云图的帧周期变化，数据是突发性的。为了提取帧同步信号，研制出“定位孔径技术”，可靠地提取帧同步信号。
The frame period of satellite image changes suddenly, a positioning aperture technique is implemented to reliably acquire the frame period.
以编队卫星周期性相对运动条件为约束条件，提出了一种与传统动力学法相反的、研究编队卫星相对动力学的新思想。
Utilizing the orbit constraint derived from the presented algebraic method, the innovational methodology which uses the converse idea comparing with the traditional method is presented.
文章通过试验和计算阐明“探测一号”卫星的周期性磁场干扰信号是来源于太阳电池壳，由于壳内表面的电流布线所致。
Test and calculation explain that cyclical magnetic field disturbances of TC-1 spacecraft come from the wiring of the electric current string at the back of solar panel.
电动力绳系卫星的推力幅值较小且方向固定，完成轨道机动任务的周期长，其最优控制问题的求解比较困难。
Electrodynamic tethers with low thrust-to-weight ratios can only perform orbital transfers over a large number of revolutions, which poses a real challenge to short time scale optimal control methods.
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.
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.
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