紧急救护人员用呼吸器气体标准的英文

standard on breathing air quality for fire and emergency services respiratory protection

• 紧急:    urgent; pressing; ...
• 救护:    relieve a sick or ...
• 人员:    personnel
• 用:    40分钟跑完全程 run the c ...
• 呼吸器:    simbal; rebreather ...
• 气体:    gas; gaseous fluid
• 标准:    standard; criterio ...