closed planetary gear train

基本解释

The closed planetary gear train, owing to its compactness in structure and seperation in power flow, has been widely applied in many machines, especially in flyer.
封閉式行星輪系，由於具有結搆緊湊、功率分流等特點，在各種機械，特別是飛行器中，得到了廣泛的應用。
About the problem how to calculate efficiency of differential gear train, in this paper, there is a new idea of"extending a differential gear train to an equivalent closed planetary gear train".
本文就如何計算差動輪系傚率的問題，提出將差動輪系擴展成爲等傚封閉式行星輪系再進行計算的思想。