In fact, there's a property of gravitational fields anywhere, even in outer space, but there is some residual field between all the planets and all the stars in the universe, that the force on a body is proportional to the mass of the body.
实际上,这是任何地方的引力场都具备的属性,甚至是在外太空,在所有的行星和恒星之间,存在着某种剩余场,在这个场里作用在物体上的力,和物体的质量之间存在比例关系
You may know that there are big fights being waged around the country now between governments that want restaurants to put calories on their labels -not on labels but on the restaurant menus, or on the menu boards in the restaurant, and the restaurant industry doesn't want this at all.
你们或许知道在政府与餐饮业间,正在进行一场大争斗,政府要求餐馆将食物的热量值写在标签上,不是标签而是餐馆菜单或菜单板上,而餐饮业很不愿意这样做
And at a distance of 2 r naught, I have a positive repulsive term.
在这2r圈的距离上,这里有一个不可忽略的排斥场。
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