A.降膜蒸發(fā) B.帶鹽種降膜蒸發(fā) C.三效蒸發(fā) D.五效蒸發(fā)
A.30000-50000 B.38000-45000 C.10000-20000 D.45000-52000
A.85% B.80% C.90% D.75%