... 所作的功 (the) work done 朝力的方向 in the direction of force 使用2000牛顿的力 use 2000 newton force ...
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Under the control of the Sun's gravitational force, each planet maintains an elliptical orbit and all of them travel in the same direction.
在太阳引力的控制下,每个行星都维持在一条椭圆形的轨道上,并按照相同的方向移动。
Since it is not easy to judge the direction of force in a fall, much less the extent of force, the belayer must evaluate each situation and make use of the rock for the most secure position.
由于在降落过程中很难判断受力的方向,更不用说受力的大小,因此保护者必须对每一种情况进行估量,并利用岩石取得最安全的位置。
What Galileo had said was no actually the sledge keep going because the natural motion of things is to keep going in the same direction they are going at the same speed unless acted upon by a force.
伽利略说其实雪橇并没有继续前进,物质的自然力以相同速度,朝着相同方向运行,除非受到了某个力的影响。
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