A.90.6% B.97.9% C.93.6% D.92.6% E.91.7%
A.248.3nm B.213.8nm C.283.3nm D.324.8nm E.228.8nm
A.增加吸收效率 B.防止顆粒反彈 C.減少氣流噪聲 D.防止顆粒變形 E.促使氣流穩(wěn)定