Gone are the days of heavy chemical fuel burns and trans-Mars injection orbits.
得花上数天时间，消耗大量化学燃料，才能将飞船送入火星转移轨道。
Orbit injection
原声例句
The Martian 火星救援（持续更新）
英语百科
Orbital maneuver
In spaceflight, an orbital maneuver (Otherwise Known As a Burn) is the use of propulsion systems to change the orbit of a spacecraft. For spacecraft far from Earth (for example those in orbits around the Sun) an orbital maneuver is called a deep-space maneuver (DSM).
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