A.1% B.1.5% C.2% D.2.5%
A.工藝水箱→石灰石漿箱→吸收塔→石膏漿液箱 B.石灰石漿箱→吸收塔→石膏漿液箱→工藝水箱 C.吸收塔→石膏漿液箱→工藝水箱→石灰石漿箱 D.石膏漿液箱→工藝水箱→石灰石漿箱→吸收塔
A.1 B.2 C.3 D.4