杂项危险物质
miscellaneous dangerous substances
miscellaneous dangerous substance
危险物质专科科长
head hazmat specialist branch
危险物质的运输
Transport of hazardous materials
极危险物质
extremely hazardous substances
灭火器
extinguisher
fire extinguisher
extinguishing apparatus
fire extinguishing apparatus
anti-clutter sea
quencher
annihilator
flame arrester
flame snuffer
fire extinguishers
flame damper
fire annihilator
power plant
anticipatory controlling
fire dam
fire apparatus
fire-extinguisher