用“halon”造句大全，halon造句
clean agent halon replacement
bromochlorodifluoromethane [halon 1211] [CF2BrCl]
Marine halon fire extinguishing system technical specifications
dibromotetrafluoroethane [halon 2402] [C2F4Br2]
Code for design of halon 1301 fire extinguishing systems
space protected by halon 1301
halon gas extinguishing system
bromochlorodifluoromethane [BCF] [halon 1211]
