在图示的轮系中,已知各齿轮的齿数分别为 z 1 =17 , z 2 =25 ,z2' =20 , z 3 =34 , z 4 =40 ,z4' =30 , z 5 =45 , z 5' =20 , z 6 =51 ,齿轮 1 的转速 n 1 =800r/min ,转向如图所示。求传动比 i 16 及齿轮 6 的转向。
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【单选题】Many women still feel that they are being __________ by a male culture, particularly in the professional services sector.