“helicopter”的概念、定义、翻译、参考文献-科学参考

单词	helicopter
释义	helicopter 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	insect dormancy insect ecotype transformation insect ethology insect expression system insect gall insect growth regulator insect habits insect hormone insect hormones insecticidal by atmosphere adjustment insecticidal microorganisms insecticidal synergist insecticide insecticide mode of action insecticide tolerance insecticyanin insectivore insectivore (fossil) insectivorous plant insect life table insect migration Insect Museum of West China insectology insectorubin insectoverdin

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