問題詳情
46.如圖所示之皮帶輪系中，其直徑A、B、C、D輪分別為45cm，若NA = 375rpm順時針，無滑動損失時，則ND為
(A)100rpm順時針
(B)40rpm順時針
(C)40rpm逆時針
(D)300rpm順時針。
參考答案
無參考答案
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