halon造句怎么写

Code for design of halon 1301 fire extinguishing systems

halon gas extinguishing system

bromochlorodifluoromethane [halon 1211] [CF2BrCl]

space protected by halon 1301

clean agent halon replacement

bromochlorodifluoromethane [BCF] [halon 1211]

dibromotetrafluoroethane [halon 2402] [C2F4Br2]

Marine halon fire extinguishing system technical specifications