A.延長(zhǎng)吸咐時(shí)間 B.切除原料氣 C.縮短吸咐時(shí)間 D.降低操作壓力
A.降低生產(chǎn)負(fù)荷 B.緊急放空 C.保壓放空 D.緊急停車(chē)
A.反應(yīng)器進(jìn)出口無(wú)機(jī)硫無(wú)明顯變化 B.反應(yīng)器進(jìn)出口有機(jī)硫無(wú)明顯變化 C.反應(yīng)器進(jìn)出口總硫明顯變化 D.反應(yīng)器進(jìn)出口無(wú)機(jī)硫明顯變化