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military rotorcraft
释义
military rotorcraft
Encyclopedia
工学
旋翼机
释
military rotorcraft
军用旋翼机
用于军事目的的直升机,利用一个或者多个水平旋转的旋翼提供升力和推进力飞行。
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material flow cost accounting
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Materialism and Empirio-criticism
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