近几年来,石油化工、高层建筑、飞机、船舶、冷库和地下工程火灾的不断发生,扑救这些火灾的关键是及时深入火场内部,寻找火源,救人和扑灭火灾。但由于我们平时忽视了氧气呼吸器的适应性训练,而招致败北的事例并不是少见的。如1982年11月22日某市消防大队在扑救一起冷库火灾中,消防队员佩戴氧气呼吸器进入火场,不 In recent years, the petrochemical industry, high-rise buildings, aircraft, ships, cold storage and underground engineering fires continue to emerge. The key to fighting these fires is to go deep into the fire site in time to find sources of ignition, save people and put out fires. However, as we usually neglect the adaptive training of oxygen respirators, it is not uncommon for those who fail to win the championship. As of November 22, 1982 in a fire brigade in a fight with a cold fire, firefighters wear oxygen breathing apparatus into the fire, not