45 下列何項機器適合降低纖維性物質之粒子大小?
(A) Ball mills
(B) Fluid-energy mills
(C) Cutter mills
(D) Hammer mills
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統計: A(17), B(45), C(216), D(25), E(0) #416719
統計: A(17), B(45), C(216), D(25), E(0) #416719