Preliminary comprehension on the characteristic of lunar gravity;
对月球重力场特征的理解
In this paper,assuming that the satellite pairs of SST are in near circle polar orbits,the spectrum relationship between the lunar gravity field and intersatellite ranging system is established by using analytic method.
文章引入已有的解析方法在理论上分析卫星间精密测距与月球重力场信号的频率响应关系,并通过模拟计算,以分析月球卫星跟踪卫星方法应用于月球重力场探测的可行性和恢复重力场的能力。
The lunar satellite s kinematic law and dynamic partial equation are described,the applicability of dynamic method and kinemetic method in lunar satellite orbit determination are discussed,the computation mode and optimization algorithm to determine lunar gravity field from observation are summarized.
对绕月卫星的运动规律以动力学方程的形式进行了描述,并讨论了绕月卫星定轨中动力法和几何法的适用性以及通过定轨观测获取月球重力场模型的计算方式和优化算法;在归纳月球重力场确定的技术流程的基础上,针对月球背面绕月卫星摄动无法观测的困难,分析了目前所能采取的各种处理办法及其特征。
Lunar gravity field acts on any moving object near the lunar space, and also is reflected by the motion of a lunar spacecraft.
月球重力场制约着近月外空间物体的运动,同时环月飞行器的运动也反映了月球重力场的作用。
As one of the moon s main physical features, lunar gravitational field plays a very predominant role in the study of the moon.
月球重力场作为月球的主要物理特征之一,在月球的研究中具有非常重要的作用。
Research on Lunar Gravity Field and Maintenance of Lunar Satellite Orbit
月球重力场及低轨环月卫星轨道保持仿真分析
Lunar Gravity Field Recovery Based on LP Doppler Data
利用LP多普勒数据解算月球重力场模型的分析
Research on Lunar Gravity Field and Effect of Perturbation on Lunar Satellite Orbit
高阶次月球重力场模型截断下的低轨环月卫星轨道受摄分析
As the moon's gravity is only about 1/6 the gravity of the earth, a 200-pound man weighs only 33 pounds on the moon.
由于月球的引力只有地球引力的六分之一，所以一个体重200磅的人在月球上仅有33磅重。
Kinematic analysis of lunar rovers in a low gravity experimental environment
低重力补偿下六轮独立驱动月球车的运动分析
Research on the Recovery of the Lunar Nearside Gravity Anomaly from Line-of-sight Acceleration;
利用视线加速度数据恢复月球近区重力异常的研究
"weight : Gravitational force of attraction on an object, caused by the presence of a massive second object, such as the Earth or Moon. "
重量: 由像地球或月球这样的大质量物体对另一物体的吸引而产生的重力。
The gravity of the earth is about six times as great as that of the moon.
地球的引力大约是月球引力的六倍。
The moon's grip on objects is not as strong as earth's.
月球对物体的引力，不象地球的强大。
The moon's gravity pulls the waters of the earth into a bulge.
月球引力吸引地球上的水，形成涨潮。
the gravity gradient of the moon causes the ocean tides on Earth.
月球引力导致了地球上的海洋潮汐。
" However, it does require a return to the moon."
不过，它确实需要人类重返月球。”
The periodic variation in the surface level of the oceans and of bays, gulfs, inlets, and estuaries, caused by gravitational attraction of the moon and sun.
潮，潮汐由月球和太阳的重力吸引造成的海洋、海湾、水湾及河口等处水面高度的周期性变化
Simulation of Traction Ability of Lunar Rover with Different Mechanics of Lunar Soil
月壤力学性质对月球车牵引性能影响的模拟
propel or hit with force, as of a ball.
重击或用力推进，指球。
continuation fo the exterior gravity field
地球外部重力场的延拓
Even though the moon's gravity is not so strong as the earth's, it does something to the earth.
尽管月球引力不如地球引力那么大，但对地球仍有影响。
Ocean tides are set up by the pull between the earth and the moon.
海潮是由地球与月球之间的引力所引起的。