... trial frame 试镜架 trial speed 试验速度 ; 试车速度 ; 试航船速 ; 试车转速 Olympic Trial 奥运会选拔赛 ...
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由于航空发动机转速高，空气流量大，排气温度高，试车时产生的强烈噪声形成大范围的环境污染；
Aerogine has the features of high rev, heavy air flux and high exhaust temperature, fierceness of noise engenders environment pollution largely during aeroengine test.
综合任务谱和相应的转速谱的获得为推导加速任务试车谱奠定了基础。
From the composite mission spectrum and the related rotating speed spectrum, the accelerated mission test spectrum can be derived.
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