查询词典 gravitational field

Every planetary body is surrounded by its own gravitational field, which exerts an attractive force on all objects.

每个行星机构周围是其本身的引力场，其中一个有吸引力的力量施加的所有物体。

To a certain proportion of objects security, environmental protection, time-saving and energy-saving space to run, must be in the Earth's gravitational field to regulate the centrifugal force and attractive.

要使某一比重物体安全、环保、省时、省能去太空中运行，必须在地球引力场中来调节离心力和吸引力的关系。

Matter comes from the norrna.1 star in a binary system can be caught by the gravitational field of the compact star.

来自双子系统正常恒星的物质，会被压缩星体的重力场所捕获。

The red shift is produced not only by the Doppler Effect, but also by the gravitational field .

除了多普勒效应产生的红移外，在引力场的影响下也会产生红移。

It is well known that the earth tide causes the temporal variations of gravitational field .

精密和详细测定地球重力场及其时间变化，是目前卫星重力测量的主要课题。

The chaotic planar attitude motion of a ligid spacecraft on an elliptic orbit in the gravitational field with air drag and internal damping and its control are studied. The necessary condition of occurring chaos is established by Melnikov's method. A numerical example is presented.

研究了同时存在大气阻力和结构内阻尼的椭圆轨道上平面天平动航天器的混沌姿态运动及其控制，应用〓方法给出了出现混沌的必要条件，用数值算例进行了验证。

So we conclude that the bending of light that we found in the accelerated system does indeed apply equivalently to a gravitational field.

所以，我们断定，我们在加速系统里面发现的光线的弯曲确实和一个重力场中的相等价。

The gravitational field is so strong that the escape velocity near it exceeds the speed of light.

重力场是如此的强大以致於靠近它的逃逸速度超过光速。

In this chapter,using Newman-Penrose formulism,we reduce the Einstein-Maxwell equations to a Sturm-Liouville style two order ordinarydifferential equation and give a new way to construct distribution valued solutions ofthe gravitational field.

利用这一结果，我们还给出了一种构造引力场分布解的方法。

The strength of the gravitational field is numerically equal to the acceleration of objects under its influence, and its value at the Earth's surface, denoted g , is approximately expressed below as the standard average .

这意味着，忽略空气阻力，物体属于自由接近地球表面的增长速度为9.8米/秒（三十二点二英尺/秒或22英里）的每个第二其后裔。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。