一种靠浮力而非机翼或旋翼获得升力的航空器,如飞艇或气球。
浮空器；[机] 气球
一种靠浮力而非机翼或旋翼获得升力的航空器,如飞艇或气球。
An aircraft, such as a dirigible or balloon, that derives its lift from buoyancy rather than from wings or rotors.
系留气球,以半永久方式飞行,如固定在18,000英尺(约6公里)高空的边境监控气球。
A moored balloon flown in a semi-permanent manner, such as a border patrol monitoring balloon affixed at 18,000 feet (~6 km).
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