然而直升机有其自身的限制，特别是说到飞行速度的时候。
But helicopters have their limitations, particularly when it comes to flying fast.
直升机上3d拍摄就如同噩梦般，特别是我可能会在一周内使用3种不同型号的直升机进行拍摄。
(3d) Rigs on helicopters are a nightmare, especially as I might use three different types of helicopters in a week.
CV - 22非常特别的一点是它的倾转旋翼，它既可以作为直升机也可以作为飞机使用。
A unique feature of the CV-22 is that its rotors tilt so that it can act either as a helicopter or a plane.
应用推荐