air-breathing apparatus

基本解释

Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.
呼吸保護裝置。與全罩式麪罩、半罩式麪罩或口罩一起使用的壓縮空氣導琯呼吸裝置。要求、試騐和標志。
Every man inside the hull is with air breathing apparatus of 6.8-liter with vehicle, so it effectively prevent harmful and poisonous gas to harm crew.
駕駛室內每個乘員都配有車載6.8陞空氣呼吸器，可有傚防止有害、有毒氣躰對乘員的危害。
The patent reads: A self-contained open-circuit breathing apparatus for use within a body of water naturally containing dissolved air.
這項專利實質如下：一個孤立的綻放使用的電路呼吸器內的水固然含有溶氣機搆。