影響刀具壽命的最主要的因素是切削速度；有一切削實驗，結果可以 V│T0.5 = C表示，其中 V 為切削速度，T 為刀具壽命，C 為常數；若切削速度增為原來的 3 倍，則刀具壽命為原來的幾倍？(

問題詳情

12.影響刀具壽命的最主要的因素是切削速度；有一切削實驗，結果可以 V│T0.5 = C表示，其中 V 為切削速度，T 為刀具壽命，C 為常數；若切削速度增為原來的 3 倍，則刀具壽命為原來的幾倍？
(A) 1/9
(B)1/3
(C) 3
(D) 9

參考答案

答案：A
難度：適中0.605263
統計：A(23),B(9),C(2),D(2),E(0)

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