青年中文planetary train的意思
planetary train中文翻譯：
行星齒輪系；行星輪系
planetary───adj.行星的
planetary gearbox───行星齒輪箱
planetary nebula───[天]行星狀星云
planetary health───行星健康
planetary nebulae───[天]行星狀星云
train───n.火車；行列；長隊；裙裾；n.(Train)人名；(英)特雷恩；(法)特蘭；(意)特拉因；v.培養；訓練；瞄準
planetary system───[天]行星系
planetary model───行星模型
planetary raid───行星突襲
the solution, the drive train consisting of the planetary gear train and 4 gear pairs is applied to realize continuous transmission under 7 working modes.───該方案采用了行星輪系和4組齒輪副的傳動機構，實現了驅動機構在7種工作模式下的連續傳動。
efficiency of a pair of gear drive without planetary motion is the base to calculate efficiency of the whole planetary gear train.───齒輪的基本嚙合效率是計算行星齒輪傳動效率的基礎。
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效率的問題，提出將差動輪系擴展成為等效封閉式行星輪系再進行計算的思想。
Study on designing conditions of planetary train───行星輪系設計條件研究