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【Daily Question】Utilities - Mechanical & Electrical - 20200304

2020-03-04View Original

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The transmission ratio of a planetary gear train cannot be calculated directly using the methods for determining the transmission ratio of a fixed-axis gear train; it is necessary to apply the principles of relative motion and use (  ) to transform the planetary gear train into an imaginary fixed-axis gear train in order to carry out the calculation. A. Relative velocity method                 B. Relative acceleration method   C. Rotation method                D. Inversion method         E. Decryption method Answer: AD

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