A.0.41~0.53 B.0.51~0.63 C.0.61~0.73 D.0.51~0.73
A.反應(yīng)器總壓 B.乙烯分壓 C.循環(huán)氣壓縮機入口導葉開度 D.反應(yīng)器床重