It investigates influence of the factors such as engine power, airspeed and flight altitude on the tail rotor failure flight test.
探讨了发动机功率、空速、飞行高度等因素对尾桨故障试飞的影响。
Ultrasonic honing and lapping complex machining technology is the hot topic of the surface texture characteristics of important parts such as engine cylinder sleeves.
超声珩磨与珩研复合加工技术是近来对发动机缸套等重要零件表面纹理特性研究的热点。
Using acoustical holography, some interesting results are shown about the different noises of a high speed vehicle, such as engine noise, tire noise and aerodynamic noise.
它能够用来分析汽车在高速运动过程中发动机的噪声、轮胎噪声和空气动力学噪声。
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