Aerospace architecture, mission, or system concepts proposed for NIAC Phase II studies must be exciting, unexplored, far-term, and technically credible.
NIAC第二阶段的研究提出的航天架构，任务，或系统的概念必须是令人兴奋的，未开发的，长远的，技术上可信的。
Finally, while NIAC encourages great leaps and accepts the accompanying risk, proposals must be technically credible, based on sound scientific principles.
最后，NIAC鼓励飞跃，并接受伴随的风险，建议必须是技术上可信的，基于可靠的科学原理。
Finally, while NIAC encourages great leaps and accepts the accompanying risk, proposals must be technically credible, based on sound scientific principles.
最后，NIAC鼓励飞跃，并接受伴随的风险，建议必须是技术上可信的，基于可靠的科学原理。
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