任何的不稳定和轨道衰变都能通过推进器和机载发动机修正。
Any instability or orbital decay can be corrected with thrusters and an onboard engine.
在灶神星轨道呆了一年之后的“黎明”号将在太空旅行中进行一次罕见的表演- - -它会重新点燃发动机并转变方向环绕另一个天体运行。
After spending a year in orbit around Vesta, Dawn will perform a trick rare in space travel-it will reignite its engines and head off to orbit another body.
Jonker解释道，“事实上他们必须通过这种方式来释放能量，降低轨道，彼此靠近并最终融合，这些重力波能产生类似喷气发动机的效果。”
In fact they must release energy in that way in order to degrade their orbits and get close enough to merge. Those gravitational waves could act sort of like a jet engine, explained Jonker.
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