A.可燃性氣體、可燃性固體、可燃性粉塵 B.可燃性氣體、可溶性液體、可燃性粉塵 C.可燃性氣體、可燃性液體、可燃性粉塵 D.可燃性氣體、可燃性液體、不燃性粉塵
A.4% B.O.4% C.O.5% D.1.4%
A.膨脹 B.壓力 C.體積 D.濃度