The noise design technology has became importance in modern helicopter design.

噪声设计已成为现代直升机设计的重点。

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Therefore, the study of this paper meets the need of our country's new helicopter design.

因此，本文的研究适应了我国直升机研制的需要。

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The hunchback cockpit configuration was influenced by the the Russian Hind helicopter design.

隆起的驾驶舱结构是受到俄罗斯雌鹿直升机造型的影响。

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Tharon Trujillo, 16, of Plumas Lake, California, invented a new helicopter design at the age of 10 to help people in disaster areas.

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First, the ducted fan design allows the car to achieve the speed and maneuverability of a helicopter -- 155 mph, 12, 000-foot altitude, two hours of flight time, vertical take off and landing -- but removes the dangers of exposed rotors, allowing the "car" to sidle up to buildings for rescue missions, or coexist in close quarters with other vehicles.

ENGADGET: Urban Aeronautics plans X-Hawk flying car for 2010