“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	normal projective connection normal prolongation normal proof normal proximity normal pulse condition normal pulse polarography normal pulse voltammetry normal quotient object normal random element normal random number normal random variable normal rating normal ratio distribution normal real form normal region normal regression normal regressive coal accumulation normal repetition of algorithms normal representation normal resolution normal response mode normal response mode, NRM normal ring normal root normal sampling inspection

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