A.鍋爐蒸發(fā)量為1t/h,原水硬度為5.6mmol/L、堿度為4.8mmol/L; B.鍋爐蒸發(fā)量為1t/h,原水硬度為3.5mmol/L、堿度為0.8mmol/L; C.鍋爐蒸發(fā)量為4t/h,原水硬度為5.6mmol/L、堿度為4.8mmol/L; D.鍋爐蒸發(fā)量為0.5t/h,原水硬度為4.2mmol/L、堿度為6.8mmol/L
A.10~20; B.20~40; C.25~30; D.40~60
A.150~200; B.350~400; C.250~300; D.400~450