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局部硬式的平流层飞艇的制作方法

   2026-04-03 网络整理佚名1140
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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