The so-called Gravity Tractor could maintain a position near the threatening asteroid, exerting a gentle tug that, over time, would deflect the asteroid.
被称为地心引力牵引器将能处于一个离具有威胁的小行星附近，施加一个小的拉力，长时间下去，就可以让小行星拉离轨道。
The so-called Gravity Tractor could maintain a position near the threatening asteroid, exerting a gentle tug that, over time, would deflect the asteroid.
被称为地心引力牵引器将能处于一个离具有威胁的小行星附近，施加一个小的拉力，长时间下去，就可以让小行星拉离轨道。
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