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。
What is the force of gravity at sea level?
海平面的地球引力多大?。
She is a force of gravity in her long gray dress.
灰色长裙下的她就像一股地心引力牢牢将他吸住。
The force of Gravity makes things fall to earth.
地球引力使物体落到地面上。
The force of gravity makes things fall to ground.
重力使物体都落到地上。
Obviously the force of gravity is acting vertically downward.
显然重力的作用垂直向下。
The force of gravity on the moon is much less than on the earth .
月球的引力比地球上的引力小得多。
All objects are pulled towards the centre of the Earth by the force of gravity.
所有的物体都由于引力而拉向地球中心。
During launch of the Soyuz craft, cosmonauts experience four times the force of gravity.
在联盟号发射的时候，宇航员所承受的是4倍的重力加速度。
By blowing downward these fans oppose the force of gravity, effectively lightening the vehicle.
通过向下吹风，这些风扇可以抵消引力，有效地减轻探测车的重力。
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。
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。
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。
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。
应用推荐