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gravitational field 【物理學】引力場,重力場。

gravitational pull

Einstein ' s magnum opus , general relativity explains that concentrations of matter or energy cause spacetime to curve and that this curvature deflects the trajectories of particles , just as should happen for particles in a gravitational field 廣義相對論是愛因斯坦的杰作,它說物質或能量的聚集會導致時空彎曲,同時這個曲率會讓粒子軌跡轉彎,這正是重力場中粒子該有的行為。

Black holes are objects with such huge gravitational field that not even light , traveling at the highest speed allowed in the universe , can escape . in 1971 john wheeler named such objects black holes because even light cannot escape from them 黑洞是擁有強大引力的物體,引力之大即使是宇宙中速度最高的光線也不能逃離黑洞亦因如此約翰威拿于1971年將這種物體命名為黑洞。

In this paper , the condition of equilibrium of fluid in gravitational field is given , as well as , the relationship of pressure and height and that of density and height in the convection layer of atmosphere are discussed 本文討論了在重力場作用下流體平衡的穩定性條件,如果這一穩定性條件被打破,對流將會發生;其次,還討論了地球對流層中氣壓及密度與海拔的關系

The synergy of the gravitational field with the other fields influences the mass transfer , heat transfer and affinity adsorption in the tapered bed , and the transfer directions depend upon the synergy results 上流錐形床親和層析在多場協同下,其傳質、傳熱以及吸附反應相互影響,過程的最終傳遞方向將取決于各場之間綜合作用的結果。

The research results reveal that the gravitational field can not be neglected in keeping non - equilibrium state of this system , which ensures the stabilization of the tapered bed and prevents from bed clogging 分析結果表明:重力場的存在,維持了體系的非平衡狀態、保證了錐形床的穩定操作,避免了柱子堵塞及壓密化。

Wang , s . , li , s . j . and zheng , h . n . , 1994 , numerical studies of magnetic reconnection in the gravitational field ( i ) the formation and coalescence of magnetic islands , chinese j . geophys . , 37 , 183 王水,李碩軍,鄭惠南, 1994 ,引力場中磁場重聯的數值研究( i )磁島的形成和合并,地球物理學報, 37 , 137

The gravitational field only causes the difference of the number of molecules at different heights , and the distributive regulation of molecular speed has nothing to do with the existence of the gravitational field 重力場只引起分子數在不同高度的差異,分子速度分布的規律與重力場的存在與否無關。

Zhang , b . , wang , s . and zheng , h . n . , 1995 , numerical studies of magnetic reconnection in the gravitational field , ( iii ) formation and motion of plasmoids , chinese j . geophys . , 38 , 301 張兵,王水,鄭惠南, 1995 ,引力場中磁場重聯的數值研究( iii )等離子體團的形成和運動,地球物理學報, 38 , 693

Geopotential , or gravitational potential relative to mean sea level , is the energy an air parcel may potentially acquire by virtue of its position in the gravitational field of the earth 位勢高度位勢,又稱重力位勢,是空氣在地球重力場中蘊藏的能量。在大氣中,位勢會隨高度和緯度而變化。

This number is calculated by squaring a person ' s walking ( or running ) speed , and dividing the result by his leg length and ( crucially ) the strength of the local gravitational field 這個數值是這樣得出:將個人行走(或跑步)的速度平房,再除以該人腿的長度,及(至關重要的)當地的重力場強度。

In the gravitational field , ideal gas molecules are affected simultaneously by two opposite effects in terms of momentum ( or speed ) distribution and spatial position distribution 摘要理想氣體分子在重力場中按動量(或速度)的分布和按空間位置的分布同時受到兩種對立作用的影響。

A few months later , karl schwarzschild gave the solution for the gravitational field of a point mass , showing that something we now call a black hole could theoretically exist 幾個月之后,卡爾?史瓦西給出了點質量引力場解決方法,表明我們現在稱做黑洞某物理論上可以存在。

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 摘要通過等效勢能圖,并利用相平面分析的方法,研究了質量四極矩引力場中粒子軌道的性質。

According to phenomena observed during total solar eclipse , it can be pointed out that the velocity of gravitational field wave is equal to the velocity of light in vacuo 摘要據日全食時的現象能夠得出:在真空中,引力波的傳播速度和光波的傳播速度相等。

Waves from binary stars are mostly low frequency waves ; this makes their signals hard to separate from the earth ' s gravitational field and vibrations in the earth 它們發出的引力波大多數是低頻率的,這就使這些引力波難以和地球引力場的震蕩區分。

Thus , anything inside the event horizon , including a photon , is prevented from escaping across the event horizon by the extremely strong gravitational field 因此,活動視界里任何東西,包括一個光子,靠非常強的引力場被避免從活動視界里逃逸出來。

Tidal energy exploits the natural rise and fall of coastal waters caused mainly by the interaction of the gravitational fields of the earth - moon - sun system 潮汐能源工程利用了海水的自然潮起潮落過程,這種現象主要是由于地球-

Calculating the mass - defect in the different gravitational field helps us study the formation and evolution of different kind of celestial body 討論不同場中的質量虧損效應對于研究不同天體的形成及演化都有重要意義。

Recently a pair of satellites launched in march 2002 have yielded the most detailed map of the planet ' s gravitational field yet 不久前于2002年3月發射的一對人造衛星,描繪了迄今最詳細的地球重力場圖。