后来他发现仅仅是申请飞行许可证就要花费数千美金，而且要举行跨部门会议，尽管这样仍无批准的把握。
Then he discovered that merely applying for permission to fly would cost thousands of dollars and require an interagency meeting with no guarantee of approval.
在美国市场的技术不需要许可证的超轻型飞行。
In the US market technically you do not require a license to fly an Ultralight.
在从中国中国飞行试验研究院获得许可证）之前预计这架飞机要完成些更远的试飞任务。
The jet is expected to make further trial flights before gaining approval certificates from the CFTE.
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