灭火是一种危险的职业,这并非秘密。北美的消防队员每年都有公务伤亡,统计表明,多数伤亡都发生在普通的建筑火灾中。现在,有一种新的灭火技术,专供第一出动人员在建筑物中使用。该技术可以大大减轻火灾对消防队员的威胁。 It is not a secret that fire fighting is a dangerous occupation. North American firefighters have official casualties each year, and statistics show that most casualties occur in ordinary building fires. Now, there is a new fire-fighting technology, designed for first-time occupants in buildings. This technology can greatly reduce the threat of fire to firefighters.