If you treble the distance, the gravitational attraction gets nine times weaker.如将距离增大两倍, 则其万有引力就减小九分之八.Many asteroids are weakly bound piles of rubble, held together by their own minute gravitational attraction.大多数的小行星都...
所有的渡船都免费或以极低的收费运载自行车。All the ferries carry bicycles free or for a nominal charge.他让那个可怜的职员超负荷工作，却只支付极低的薪水。He overworks and underpays the poor clerk whom he employs.卡路里含量极低的饮食结构也会造成营养不良。A diet extremely low in calories ca...
下面,我们借助于洛伦兹变换来讨论其中的几个结果.We shall discuss several of them below with the help of the Lorentz transformation.有二种主要类型的虫孔: 洛伦兹虫孔和欧几里得虫孔.There are two main types of wormholes: Lorentzian wormholes and Euclidean wormholes.从洛伦兹...