查询词典 gravitational field

This paper has given a thorough investigation into the application of BP neural network to gravitational density interface inversion as well as the implementation of wavelet theory in potential field decomposition and, on such a basis, analysed and evaluated the prospect of applying wavelet neural network to the inversion of gravitational and magnetic data.

重磁数据处理是地球探测与信息技术学科中重磁方法、理论在生产实践工作中的重要环节，其中反演问题和位场分离除了具备自身的作用外，两者并不是截然分开的。位场分离可以为反演问题提供更加可靠的先验信息，对提高反演精度具有一定的作用。反演问题是地球物理的核心问题。增

The thermocapillary migration of a droplet in another host liquid subject to the gravitational field and imposed thermal gradient is theoretically investigated in the case of vanishingly small Re and Ma.

本文理论上研究了不混溶液体中液滴在不同方位的温度梯度场和重力场中的热毛细迁移现象。

Now, the electromagnetic, the weak and the strong forces have already been unified in a quantum framework, whereas the quantization of gravitational field is still faced with the vital problem of infinities after more than 70 years of hard attempts.

爱因斯坦本人做了开创性的工作，即试图建立一个将引力和电磁力纳入同一理论框架的统一场论，但是虽然尽了后半生漫长而艰辛的努力，终未能成功。

The Capture Theory: This theory proposes that the Moon was formed somewhere else in the solar system, and was later captured by the gravitational field of the Earth.

捕获理论：这个理论认为，月球形成于太阳系其他地方，后来被地球引力场捕获。

The object's gravitational field will bend the starlight like a lens, briefly making the star appear slightly brighter.

它的引力场会像透镜一样弯折光线，使星体暂时变得稍微明亮些。

A black hole is a point in space that is so dense with matter that its gravitational field will not let anything - not even light - escape.

黑洞就是太空中的一个点，此点密度甚高，使得任何物质甚至光都无法脱离它的引力。

This time, several main task personnel anxiously is waiting for the region senior official, as soon as saw the yellow senior official's to rush, immediately put through the event to report the place yellow race Mars interspace observation station, after Huang Qu senior official yellow Jinlong and the crew has greeted, directly arrived in front of the giant computer display monitor, not big a while, transmitted Mars aspect the live videotaping, saw only observes stationmaster a face startled appearance, saw the yellow senior official, immediately slightly calm, but still some aphasias explained religious doctrine:"Reports the yellow senior official, because in the short-term Milky Way nameless region will have a super giant star to have the violent detonation, instantaneous will produce in it the formidable shock-wave as well as will cause from this under the rapid change gravitational field together function, caused in the Milky Way correlation region to have a series of chain-reactions, finally forced a distance Earth probably is 20,000,000,000 kilometer diameter 100 kilometer about planetoids changed its original movement track; Latter passed through the home station most advanced computer to calculate repeatedly has obtained an astonishing result: This will change orbital the planetoid rapidly to hit after a year to ours Earth!"

此时，几名中心工作人员正急切地等待着区域长官，一见黄长官闯了进来，就立即接通了事件报告地点黄色人种火星星际观测站，黄区长官黄金龙与全体工作人员打过招呼后，就直接来到巨型电脑显示屏前，不大一会儿，就传来火星方面的实况录像，只见观测站长一脸惊慌的样子，见到黄长官，立刻稍微镇定了一下，但仍有些失语般地讲道：&报告黄长官，由于近期银河系无名区域内有一颗超级巨星发生猛烈的爆炸，在其瞬间产生的强大冲击波以及由此而导致的迅速改变的引力场共同作用下，引起银河系相关区域内发生了一系列的连锁反应，最终迫使一颗距地球大约为200亿公里的直径100千米左右的小行星改变了其原有的运行轨道；后又经本站最为先进的电脑反复计算得出了一个惊人的结果：这颗改变轨道的小行星将于一年后急速撞向我们的地球！&

Or, going a step further, we can say that a gravitational field is just a physical manifestation of the curvature of space.

或者，进一步说，我们可以认为，一个引力场就是一个弯曲空间的自然表现。

The quality of an object the greater the density of the distribution of the greater, then the stronger the gravitational field, the greater the curvature of space; corresponding to the time flow more slowly.

物体的质量越大，分布的密度越大，则引力场愈强，空间曲率愈大；相应地，时间流程愈慢。

On other hand, under the effect of the gravitational field of the Galaxy, pulsars will osciliate through the galactic plane.

振荡周期在10〓年左右。以前的工作只考虑银河系在太阳附近的引力场的影响。

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。