A.>70%,<5% B.>70%,<20% C.>80%,<5% D.>80%,<10%
A.30,20 B.10,4 C.20,10 D.20,15
A.開放空泄壓 B.采出調(diào)節(jié)閥全開 C.停止30s加熱 D.自動向系統(tǒng)投料