【已刪除】28.下列何者無法達到粉末粒度小於 120 mesh?
(A)錘擊式粉碎機 (impact crusher)
(B)水飛法(water grinding)
(C)流能磨 (fluid energy mill)
(D)球磨機 (ball mill)

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統計: A(0), B(1), C(0), D(0), E(0) #2624453