A.流量报警B.液位报警C.温度报警D.压力报警
A.聚合B.冷冻C.原料D.掺合
A.H2S< 10ppm,SO2< 10ppm,O2>19.5%B.H2S< 10ppm,SO2< 10ppm,CH4< 20ppmC.H2S< 10ppm,S< 10ppm,O2>19.5%D.H2S< 10ppm,SO2< 10ppm,O2< 19.5%