31.於一傳動軸端上,以臥式銑床銑削10 mm寬之鍵槽(key-way ),應選用下列何種鉄刀 最恰當?
(A)端鉄刀(end milling cutter )
(B)側就刀(side milling cutter )
(C)面就刀(face milling cutter )
(D)角就刀(angle milling cutter )

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統計: A(60), B(95), C(22), D(9), E(0) #919052