查询词典 gravitational field

An instrument for measuring variations in the gravitational field of the earth .

测量地球引力场变化的仪器。

The sun with the celestial bodies that revolve around it in its gravitational field.

太阳以及在它的引力场内围着它旋转的天体。

Its state equation may be the typical compressed fluid form; thus, may use the characteristic of the ideal gas to further explain relations of energy and the mass in the gravitational field.

其状态方程可以是典型的可压缩气体形式；这样，就可以利用理想气体的特性来进一步解释引力场内能量和物质的关系。

In a similar manner, the positive object creates an attractive gravitational field toward the positive mass.

同样，正物质对正质量产生一个引力场。

By means of the effective potentials and with the phase-plane method,the properities of the orbits of particles in the gravitational field with mass quadrupole moment are studied.

通过等效势能图，并利用相平面分析的方法，研究了质量四极矩引力场中粒子轨道的性质。

By considering the Newtonian limit, the gravitational field potential is a nonintegrable Henon-Heiles structure.

在第二章中，我们研究了在几种引力场中试验粒子运动状态的动力学演化。

After a century, the kinetic theory of gases was also won the rapid development of .1857, the Clausius for the first time clearly statistical concepts, derived gas pressure, volume and temperature inter-correct relations, but also in 1858 introduced the concept of .1859 free path of molecular motion, the Maxwell velocity distribution law is derived, established the mathematical theory of transport processes .1868, the Boltzmann velocity distribution law was introduced in the gravitational field .

此后一个世纪，气体动理论才又获得飞跃发展。1857年，克劳修斯第一次清楚地说明统计概念，导出了气体压力、体积和温度间的正确关系，还于1858年引入分子运动自由程概念。1859年，麦克斯韦导出了速度分布律，建立了输运过程的数学理论。1868年，玻耳兹曼在速度分布律中引入重力场。

In this paper, from the equations of motion, we obtain the orbital and mass defect effects in the gravitational field.

中文摘要：本文从引力场中运动方程出发得到了引力场中的轨道效应和质量亏损效应。

As long as it creates its own gravitational field, the starship could travel locally at very slow velocities, therefore avoiding the pitfalls of Newton's Third Law of Motion and keeping clocks in sync with its launch site and destination.

当企业号建立起自己的重力场，飞船的局部就能够以低速行驶，从而避免牛顿第三运动定理的缺陷，同时保证船上的时钟与出发地及目的地相同。

The energy-momentum tensor of gravitational field is a very important physical quantity.

引力场的能动张量是引力理论中一个极为重要的物理量。

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。