31. Which type of response will be excited for a shafting system if the frequency of a vibratory
load is equal to a natural frequency of the connected structure or equipment of this shafting
system?
(A) Resonant response
(B) Static response
(C) External response
(D) Transmitting response
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當軸系統的振動負載頻率等於其連接結構或設...
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