Numerical Simulations for the Downwash Flowfield of Helicopter Rotors

直升机旋翼下洗流场的数值模拟

属类：行业术语-中文论文标题-

Wind Tunnel Experimental Study of Aerodynamic Interactions between a Rotor and a Body of a co-axial Helicopter

直升机旋翼与机体间气动干扰风洞实验研究

属类：行业术语-中文论文标题-

We were whirled away in a helicopter .

直升机迅速把我们运走。

属类：综合句库--

The helicopter is hovering over the lawn

直升机在草地上空盘旋。

属类：综合句库--

The helicopter hovered over the top of the building for a moment before inching away.

直升机在楼顶上悬停了一会儿慢慢飞走了

属类：综合句库--

The helicopter hovered over the building.

直升机在那栋建筑物上盘旋。

属类：综合句库--

The helicopter hover over the crowd for a while before inch away.

直升机在人群上空盘旋了一会儿后慢慢飞走了。

属类：综合句库--

The helicopter hovered over the crowd for a while before inching away.

直升机在人群上空盘旋了一会儿后慢慢飞走了。

属类：综合句库--

Study on Frequency Analysis from 1 to 4,000 Hz for Helicopter ’s Noise

直升机噪音之频率分析(1Hz~4kHz)

属类：行业术语-中文论文标题-

Simulation and Analysis of the Millimeter Wave Chirp Frequency Stepped Radar Signal with Vibration of a Helicopter

直升机振动环境下的毫米波调频步进信号仿真分析

属类：行业术语-中文论文标题-