... 变几何形机翼 variable-geometry wing 变几何形设计 variable-geometry design 变几何形头部 variable geometry nose ...
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variable-geometry design
变后掠的设计
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The B-1B has a "variable-geometry" or swing-wing design: The wings are swept forwards, almost at right angles to the body, for take-off and landing and cruising.
BBC: Profile: B-1 bomber
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