In a helicopter the articulated head and tail rotor gearbox are required to be a very high specification design using the best materials and requiring frequent and costly maintenance.
在直升机的阐述头和尾桨变速箱都必须是一个非常高规格的设计使用最好的材料和需要频繁和昂贵的维修。
The second part presents the application of skewed blade in the design of diagonal rotor.
第二部分是将叶片的弯曲设计应用于本文所用的斜流叶轮中。
When conducting the rotor dynamic analysis of several planning complex composite rotor systems in design stage of engines, The substructure transfer matrix method is especially beneficial.
在设计中采用复杂的多转子结构，需多方案比较时，应用本法计算转子动力特性特别有利。
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