As for the Space launch System (SLS) designed to launch the Orion Multi-purpose Crew vehicle, Muncy questioned whether the launch vehicle would get built.
至于为发射猎户座多用途乘员运载器设计的航天发射系统(SLS)，Muncy质疑运载火箭是否能得到建造。
The mission would call into question whether SLS is actually needed for deep space exploration, especially with crewed Orion flights on SLS not beginning until 2021, Muncy said.
该任务将质疑SLS对于深空探测是否实际需要，尤其是SLS猎户座载人飞行一直到2021年还没有开始，Muncy说。
The mission would call into question whether SLS is actually needed for deep space exploration, especially with crewed Orion flights on SLS not beginning until 2021, Muncy said.
该任务将质疑SLS对于深空探测是否实际需要，尤其是SLS猎户座载人飞行一直到2021年还没有开始，Muncy说。
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