在JL 474 Q1发动机进行台架性能试验的基础上，根据现有的理论，得到基本的动力性和经济性换档规律。
Based on the performance Testing of JL474Q1 engine, according to the existing theory, general shifting law of the power and economy performance is developed.
在原来角度反馈减摇鳍系统的基础上，通过适当的改造建立升力反馈减摇鳍系统的实验台架。
Properly rebuild the experiment formwork of lift-feedback fin stabilizer system on the base of original angle-feedback fin stabilizer system.
在对汽车变速器台架模拟试验分析的基础上，探讨了适合汽车变速器滚动轴承故障诊断的方法。
It also inquires into the method of trouble diagnosis adaptable to motor vehicle transmission bearing on the basis of bench simulating teat and analysis of motor vehicle transmission box.
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