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helicopter rotor system
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helicopter rotor system
Encyclopedia
工学
直升机结构
释
helicopter rotor system
直升机旋翼系统
为直升机提供垂直飞行、前飞、侧飞和后飞拉力,实现对直升机垂向、纵向、横向和航向操纵的主要部件。
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green space near the residential house
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