Upwards of a billion stars in our galaxy have burnt up their internal energy sources, and so can no longer produce the heat a star needs to oppose the inward force of gravity.
在我们的星系中，超过10亿颗恒星已经耗尽了它们的内部能量来源，因此无法再产生恒星所需的热量来对抗向内的引力。
For calculating the force of gravity on a satellite, the radius of the earth is irrelevant.
计算地球作用于卫星的重力时，地球的半径是无关紧要的。
As you age, the circles can darken and the force of gravity will also make the circles look larger.
随着年龄的增长黑眼圈会更严重，同时随着地心引力的作用有扩大的趋势。
The force of gravity is not constant everywhere for elliptical form and rugged surface of the earth.
由于地球的椭圆形状及其高低不平的表面，重力不是到处都一样的。
The material drops on the center of the grinder with the help of the force of gravity and the gas impact.
物料借助于重力和气流的冲击作用而落到磨盘中央。
Finally, the hatch opens and, unaccustomed to the force of gravity, you stagger out amid venting waste gases.
终于，舱门打开，你蹒跚着(由于不习惯于重力作用)随舱内涌出的污浊气体走了出来。
The core of the book describes an attempt to unify the fundamental forces of matter with the force of gravity.
这本书的核心就是描述一个试图统一引力和其它基本相互作用的理论。
Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey.
出发前，李颜平对我解释说旅途中地心的引力会变化三次。
Matters existing on earth will behave in a different manner when in space where there is no force of gravity.
我们在地球上发生的事物，在没有地心吸力的太空中便不一样。
For instance the geomagnetic Field, the heat flow, the propagation of seismic waves, the force of gravity, etc.
例如，应用地球物理勘探，可以了解诸如地磁场、热流、地震波的传播和重力等地球物理性质。
Only now is there no acceleration so I can write down that force of Walter Lewin plus the force of gravity equals zero.
加速度才为零,写出来就是：我给它的力,与重力之合力等于零。
Just like Newton had postulated the force of gravity with these very simple equations to explain what we perceive.
就如同牛顿假设万有引力一样，那些简单的方程序解释了我们的所知所感。
You can also try changing your position: Get up on all fours, or squat; the force of gravity might shift the baby's head.
你也可以尝试改变你的姿势：起床四肢着地，或者蹲着；让重力作用在婴儿的头部。
In the same way, the rotation of the material in a disk prevents it from collapsing inward under the force of gravity.
相同的道理，圆盘上物质的转动阻止了重力作用所引发的向内崩塌。
However great a man may be in society, without love he will lack the force of gravity, the sweet fragrance of a flower.
不论一个人在社会上有多伟大，若没有爱心，他会缺乏重心力、花一般的芬芳。
Suppose a spacecraft floats freely somewhere in space so far from any stars that there is no force of gravity inside it.
假设一个宇宙飞船在宇宙中某个地方自由的漂浮着，和所有的星球都很远，所以里面没有任何引力。
They are opened and sustained in the open position by the force of velocity pressure, and closed by the force of gravity.
他是利用流体速度压力来开启和保持在开启的位置，并利用重力的作用来关闭。
The balloon's skin retracted almost instantaneously, leaving its contents unsupported and subject to the force of gravity.
几乎是在刺破的同时，气球收缩，从而使气球内的水失去气球原有的支撑作用但同时仍然受到重力作用。
Gran Sasso and CERN are at different distances from the center of the Earth, so the force of gravity varies slightly between the two LABS.
由于格兰·萨索与欧洲核子研究中心，这两个位置离地球中心的距离并不一样，所以这两个实验室里的重力也稍许有所差别。
When massive stars exhaust their nuclear fuel and can no longer resist the relentless, crushing force of gravity, they collapse violently.
当耗尽核燃料的时候，大型恒星再也抵挡不住核心引力造成的残酷的粉碎性重压，它们发生剧烈塌缩。
The net effect on the piston of all these small irregular forces must be equal to that of the force of gravity if there is to be equilibrium.
假使两方面保持平衡，那么所有这些小的不规则的力对活塞的有效作用必须与重力相等。
Gravity instruments are designed to measure variation in the force of gravity from one place to another rather than the absolute force itself.
重力仪的设计是为了测量一处到另一处的重力变化，而不是绝对重力值本身。
The force of gravity starts to pull together huge regions of relatively dense cosmic gas, forming the vast, swirling collections of stars we call galaxies.
引力逐渐把密集的大区域星云气体拉拢，形成那些巨大、漩涡状结构的所谓星系群。
A black hole is a concentration of mass great enough that the force of gravity prevents anything from escaping from it except through quantum tunneling behavior.
一个黑洞是物质浓缩到足够大的以致引力除了通过量子隧道行为之外阻止任何东西从它那里逃逸。
The growth of these structures was initially driven only by the attractive force of gravity, but then later there was competition with the repulsive force of dark energy.
这些宇宙空间中的结构最初是由于万有引力的作用开始进化的，但不久之后就有暗能量的反重力作用与其对抗。
That is, you minimize potential energy and you see things falling under the force of gravity and so forthgoing to potential energy minima in conformance with this result.
换句话说，你使得势能最小化,然后发现我们关注的东西,在重力或者其他力的作用下下落,直到势能最小的地方,这和我们刚才的结果是一致的。
The widely celebrated discovery indicated that a mysterious and invisible form of energy is counteracting the force of gravity, pushing matter apart at an ever faster rate.
这项广受赞誉的发现显示出，一股神秘的、看不见的能量形式在和重力抗衡，以更快的速度把物质分开。
And since a typical tower contains a full day's worth of water, the force of gravity can maintain the hydrostatic pressure of the water system even when the power goes out.
普通水塔储蓄一整天的用水，由此，即便在停电的情况下，重力作用仍能保持供水系统的静水压力。
And since a typical tower contains a full day's worth of water, the force of gravity can maintain the hydrostatic pressure of the water system even when the power goes out.
普通水塔储蓄一整天的用水，由此，即便在停电的情况下，重力作用仍能保持供水系统的静水压力。
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