“直升机”的概念、定义、翻译、参考文献-科学参考

单词	直升机
释义	直升机 Encyclopedia 工学直升机释 helicopter直升机以发动机驱动旋翼旋转作为升力和推进力来源，能垂直起落、悬停并能进行前飞、侧飞、后飞、定点回转等可控飞行的重于空气的航空器。
随便看	drifts of charged particle drift soil drift speed drift subpulse drift support and reinforcement drift system drift term drift tube drift tube linear accelerator drift turbulence drift vector drift velocity drift velocity of thermomass drift wave drift wave turbulence Drigalski Island drill drillable bridge plug drill barrow drill bit drill collar drill collar wave drill-core sampling drill-down drill-down analysis

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