reverse gravity model 逆向重力模型
"You're going to be going at a pretty good clip," Schmidt says, and the ship could maybe swing through the stars' gravity Wells in a kind of reverse slingshot effect to help decelerate.
“你可以来个漂亮的转身，”施密特说，让飞船以摇摆的姿势穿过星际重力区，然后利用反向的“弹弓效应”帮助减速。
A key question for the fate of the universe is whether or not the pull of gravity is strong enough to ultimately reverse the expansion and cause the universe to collapse back on itself.
关乎宇宙命运的一个关键问题在于：引力是否足够强大，最终扭转膨胀的趋势并导致宇宙坍塌回去。
Recent calculations suggest that close to the big bang, the fabric of space and time was so contorted that it flipped gravity into reverse, producing a repulsive force.
最近的计算表明当接近大爆炸时，空间和时间的卷曲之利害以致引力能被逆转而产生排斥力。
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