已知燃气的容积成分为:=5.7%,=5.3%,=1.7%,y CO =8.4%,=20.93%,=18.27%,
15.6%~85%
18.2%~22.6%
7.85%~92.8%
7.74~35.31%
[解析] 该燃气火焰传播极限为: