查询词典 satellites

China is planning to build a new family of rockets to boost the country's capabilities to put satellites and space stations into orbit.

中国计划建造一组新型火箭，以增强其把卫星和空间站送入太空轨道的能力。

By now, putting satellites in orbit is old hat to space scientists.

现在，对航天科学家来说，把卫星送入轨道已不是一桩新鲜事了。

One of our satellites is falling out of orbit.

我们的其中一个卫星正在脱离轨道

They do this with the help of satellites placed in orbit around the planet.

他们的工作都是在沿火星运行的卫星帮助下进行的。

Which will consist of 66 satellites orbiting about 500 miles above the earth.

要动用到66枚卫星在约500英里的高度环绕地球运转。

The errors and area limits caused by the lunar curvature were avoided in this model established under the Selenocentric Orthogonal Coordinate System, the accidental errors of exterior line elements were reduced by orbit fitting and interpolation, the polynomial orders of systematic errors in satellite orbits were decreased with their expression in the flying coordinate system moving and rotating with satellites, and the reliability of exterior orientation solution was enhanced under the condition of sparse and low accuracy control points by appending constraint of orbit and attitude parameters.

该模型通过在月心直角坐标系进行影像空中三角测量来消除月球曲率引起的误差和测图范围限制，通过轨道形状的拟合与插值来减小摄影时刻轨道位置的偶然误差，在飞行坐标系中建立轨道修正模型来减少定向参数的数目，对轨道和姿态增加约束条件来提高月面控制点数目稀少及精度低条件下外方位解算的精度与可靠性。

The overlord role gradually drifted from its stated intention of protecting weaker states; the overlordship eventually became a system of hegemony of major states over weaker satellites of Chinese and "barbarian" origin.

霸主作用逐渐漂流其声明的意图保护弱小国家的overlordship最终成为一个系统的霸权大国弱卫星中和"野蛮的"原产地。

In the beginning, some people secretly tuned into broadcasts from North Point on their parabolic antennas. But as time passed, the broadcasts no longer came in; maybe the satellites were destroyed.

人们开始接收北方传来的电视信号，但是没过多久信号就消失了，也许卫星已经被摧毁了，除了军用网络，一切计算机网络也被切断了。

The motion of deep space probe is usually divided into three stages: parking orbit near Earth, transfer orbit toward the target body and the orbit around the target The Parking orbit, which is a kind of orbit of earth satellites, is not discussed in this thesis.

深空探测器的运动通常分为三个阶段：近地停泊轨道，飞向目标天体的过渡轨道和环目标天体的运行轨道，相当于目标天体的卫星。

In the simulation, the control of two satellites with different mass (6tons, 9tons) under pentagonal pyramid configuration and tetragonal pyramid configuration has been studied individually by means of zero movement additive.

基于五棱锥构形和金字塔构形两种构形采用零运动添加的方法研究了两种不同质量的卫星(6吨、9吨)的控制情况，表明五棱锥构形的控制力矩陀螺系统能够满足任务要求，姿态稳定度1×10~4°/s，指向精度0.1°。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐