A.水冷壁 B.過熱器 C.省煤器 D.屏式過熱器
A.1/3~2/3 B.1/5~3/4 C.1/2~3/4 D.1/2~3/5
A.20% B.25% C.30% D.50%
A.深解系數(shù) B.鍋水含鹽量 C.攜帶系數(shù) D.排污率