“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	Small Trumpet small turbine missile engines small variety of semigroups small vein small vibration small walnut aphid small watershed small watershed comprehensive management small watershed comprehensive management in China small watershed control station small watershed non-point source pollution small-world brain network small world network small-world network small world networks small-world phenomena small-world problem small yellow croaker Sman Dpyad Chen mo Sman dpyad zla ba’i rgyal po smaragdite Smarandache Smarandache ceil function Smarandache constant Smarandache function

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。