它也无需尾部旋翼。
我可以查阅旋翼大小及重量。
首先，确定了四旋翼直升机的设计方案。
First, the project of four-rotor helicopter has been decided.
智能旋翼技术是目前直升机界的研究热点。
The smart rotor technology is the present hotspot in the helicopter world.
最后的设计具有一个主旋转器，也就是旋翼。
一般的讲，直升机向旋翼倾斜的方向移动。
Generally speaking, the helicopter will move in the direction it's tilted.
该公司的旋翼飞机拥有所谓的“专利纯洁”。
提出了一种全新的计算旋翼桨叶动力响应的方法。
A new way to solve dynamical response of rotor blade in helicopter.
他说：“旋翼飞机在军事和商业上都发挥着关键的作用。
"Rotor craft specifically play a critical role for both military and commercial applications," he said.
在紧急情况下，即使16个旋翼中有4个出现问题飞机也能降落。
In an emergency, it can land even if four of its 16 rotors fail.
以此为基础，建立了电控旋翼直升机的飞行动力学模型。
Then the flight dynamics model of the ECR helicopter was constructed.
在著陆之前，尾旋翼必须停止转动。（无安装熄火降落组）
The tail blades must stop before the helicopter touches the ground.
提出一种面向设计的复合材料旋翼桨叶结构动力优化方法。
A new way to solve dynamical response of rotor blade in helicopter.
因此世界各国都把直升机的旋翼技术当作直升机的关键技术来研制。
As key technology, the rotary wing technology is developing by the nations of the world.
因为所有旋翼的升力增加是一致的，所以直升机没有没有发生翻转。
This increase in lift occurs evenly, so the helicopter does not turn.
因为所有旋翼的升力增加是一致的，所以直升机没有没有发生翻转。
This increase in lift occurs evenly, so the helicopter does not turn.
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