在没有重力的情况下，踩起踏板来很容易。
散步可以帮助你直立和获得地心重力的作用，去防止胃酸上溅到食道上。
Walking keeps you upright and enlists gravity to keep acids from splashing up the esophagus.
在熔体内部，在重力的影响下，（研究人员）根据密度对不同元素进行了分类。
Within the molten interior, under the influence of gravity, different elements were sorted out by density.
重返大气层的航天器受到重力的作用。
Spacecraft which are re-entering the earth's atmosphere are affected by g forces.
它引起了重力的变化。
种子在外太空会受到辐射和低重力的影响。
The seeds are influenced by the radiation and low gravity in outer space.
每一株盘子上的植物都能感受到重力的作用，根部都朝外面生长。
Every plant on the disk had responded to the pull of gravity, and pointed its roots to the outside.
由于地下水位不是平面的，而是随着地形起伏的，所以地下水和地表水一样受到重力的影响。
Because the surface of the water table is not flat but instead rises and falls with topography, groundwater is affected by gravity in the same fashion as surface water.
下一个参数是重力的大小和方向。
自由落体是指，唯一作用力是重力的情况。
Free fall is when the forces acting upon you are exclusively gravitational.
现在一般性方程引入，到了重力的例子里。
我再问你，你感觉到重力的方向是怎样的？
So now I ask you "Ah, in what direction do you perceive gravity?"
假如你是寇克船长，你在一个无重力的空间站。
You're going to play Captain Kirk and you're in a space station and there is no gravity.
死去的身体里，血管里只有重力的作用。
这样利用重力的原理便可以减少胃酸倒流。
This can help reduce acid reflux when sleeping, as gravity keeps the acid in the stomach.
剩下的就是重力的事了。
我会把你放置在不同的情境中，然后问你重力的方向。
I'm going to put you in various positions and then ask you what is the direction of gravity.
重力的作用随着距离的增大而减小，但是不可能完全消失。
The effect of gravity diminishes with distance, but it never truly goes away.
你们看白色物质,因为这是重力的方向,所以白色物质都到了下面。
You see the white stuff because this was the direction of gravity so it ended up here and there's some here.
每天花五分钟时间，自在地随意平衡摆脱地球重力的束缚。
Take gravity out of the equation once a day for five minutes.
挑战重力的曲折叶形令这把椅子有着凌空一桥飞架般的优雅姿态。
The crumpled leaf shape defies gravity, giving it the grace of a suspension bridge.
美国宇航局曾经研究过提供重力的宇航服，但是由于技术和操作问题束之高阁。
NASA has looked at gravity countermeasure suits for spacewalking in the past, but tabled the research due to technical and operational issues.
同时如果我想让一个物体平移，我还要克服重力的作用，否则它就会垂直下沉。
I also had to exert a mild mental push against gravity if I wanted to keep an object moving in a straight horizontal line; otherwise it would sink vertically.
研究者们还表示重新找到的俄国反射器对于研究月球液核并测试有关重力的猜想大有裨益。
And the researchers say that the rediscovered Russian reflector is particularly useful for studying the moon's liquid core and testing ideas about gravity.
宇宙有一些基本的物理性质，比如电子的带电性、重力的精确大小、光速，等等。
There are some basic physical properties ofthe universe, such as the charge of the electron, the precise strength ofgravity, the speed of light, etc.
现在它被一个宇宙绞碎机抓住了，它的尘埃带在重力的拖拉之下正在被拉长和扭曲。
Now that it's caught in acosmic blender, its dust lanes are being stretched and warped by thetug of gravity.
现在它被一个宇宙绞碎机抓住了，它的尘埃带在重力的拖拉之下正在被拉长和扭曲。
Now that it's caught in a cosmic blender, its dust lanes are being stretched and warped by the tug of gravity.
现在我要把向心加速度，和能被感知到的重力联系起来，来看看我们是如何感知重力的。
I'm going to make a connection between centripetal acceleration and perceived gravity The way that you perceive gravity.
科学家们发现两种瓦尔登布尔氏综合症相关基因和两种在拟南芥中负责感测重力的基因对上了号。
The scientists discovered that two Waardenburg-linked genes matched mustard plant genes for sensing gravity.
因为重力是常数，经验丰富的中卫和前锋可以算出重力的影响，尽可能迅速的把球传到前场。
Because gravity is a constant, experienced quarterbacks and kickers can account for its effects to move the ball downfield as efficiently as possible.
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