一个工程师称核能火箭的效率天生比它们的化学兄弟火箭高一倍。
One engineer claims nuclear rockets are inherently twice as efficient as their chemical brethren.
“我们在决定去火星之前，都不会拥有一枚核能火箭。”麦克·丹尼说到。
"Until we commit to going back to Mars, we're not going to have a nuclear rocket," McDaniel said.
我们也能到达更多的地方，”麦克丹尼说到核能火箭研究，“我们非常可能去火星。
We could have gone more places,” McDaniel said of nuclear rocket research.
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