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。
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.
近30多年来，这是NASA第一次对航天飞机之外的载人航天系统进行发射测试。
It has been more than 30 years since NASA launched something other than a space shuttle to test a manned spaceflight system.
不同于相对地紧紧贴近在地球的航天飞机，太空发射系统发射载人太空舱进入太空深处。
Unlike the space Shuttle, which stuck relatively close to Earth, the space launch System is designed to launch a crewed space capsule into deep space.
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