局部硬式的平流层飞艇的制作方法

2026-04-03 网络整理佚名1090

Key Point:1.本实用新型涉及平流层飞艇结构领域，具体涉及一种局部硬式的平流层飞艇。背景技术：2.平流层飞艇具有非常广泛的军事及民用价值

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