- fixed forth fire-extinguishing system
- 固定: fixed; regular
- 泡沫灭火: foam fire-fighting
- 系统: system
- 泡沫灭火系统: foam extinguishing system; foam extinguishingsystem; foam fire extinguishing system; foam smothering system; foam system; foamite system; frostproof fire extinguishing system; froth extinguishing system; froth fire extinguishing system
- 固定低胀力泡沫灭火系统: fixed low-expansion foam fire-extinguishing system
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