资讯

BBC14 年
Firefighters get new backdraught training units
Firefighters using breathing apparatus will be able to train against phenomena known as flashover and backdraught. The conditions can lead to water from fire hoses turning into huge amounts of ...
BBC14 年
Firefighters get new backdraught training units
Firefighters using breathing apparatus will be able to train against phenomena known as flashover and backdraught. The conditions can lead to water from fire hoses turning into huge amounts of ...