While flying at 1,000 ft., he noticed a peculiar noise emanating from the helicopter's rotor.

在1,000英尺高空飞行时，他注意到直升机旋翼发出一种奇怪的噪音。

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ZSL series erivan screen is the most popular choiceness equipment at persent.

ZSL旋翼筛是目前国内使用最广泛的一种精选设备,用于筛除浆料中的浆团及其它非纤维杂质.

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Rotor following a stabilizer bar, with the blade perpendicular.

旋翼下面有稳定杆, 与桨叶呈直角.

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Like most things, there are a variety of classes for rotary - wing aircraft.

像许多别的东西一样, 旋翼机也有多种分类.

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Then the flight dynamics model of the ECR helicopter was constructed.

以此为基础,建立了电控旋翼直升机的飞行动力学模型.

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A new way to solve dynamical response of rotor blade in helicopter.

提出了一种全新的计算旋翼桨叶动力响应的方法.

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Print and recorded promotional materials of SparrowHawk APV Gyroplanes.

松雀鹰旋翼机的印刷及影视介绍.

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An adaptive neural networks controller is designed for tilt rotor aircraft platform.

采用自适应神经网络控制方法,设计出倾转旋翼机模拟平台姿态角控制器.

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The LAMV is not operated like traditional fixed -- or rotary - wing aircraft.

LAMV的操作不同于传统的固定翼飞机或旋翼式飞机.

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The blade flapping lead - lag angles rotor are vital parameters of a helicopter.

旋翼挥舞角、摆振角是直升机的关键参数.

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European helicopter's main rotor blades four, non - bearing and high - strength fiber composite materials.

欧洲直升飞机的主旋翼采用四浆叶 、 无轴承和高强度纤维复合材料制造.

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A model for the nonlinear dynamics of a subminiature rotorcraft is established.

建立了超小型旋翼机系统的非线性参数化模型.

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Gyrocopter acts as a detector.

旋翼机可以起到侦察器的作用.

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Machine rotor diameter of 7 meters.

该机旋翼直径7米.

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The helicopter rotor blade deicing technique is greatly important to ensure the flight safe - ty.

直升机旋翼桨叶除冰技术对保证直升机飞行安全是十分重要的.

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