For comparison, a nuclear spaceflight to Mars would consume tons upon tons of chemical fuel.
相比之下,前往火星的核航天飞行将消耗成吨的化学燃料。
The Martian 火星救援(持续更新)
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。
英语百科
Fuel
A fuel is any material that can be made to react so that it releases chemical or nuclear energy as heat or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but has since also been applied to other sources of heat energy such as nuclear energy (via nuclear fission or nuclear fusion).