Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.
呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。
In circumstances where breathing apparatus must be worn there must also be an attendant wholly concerned with maintaining breathing air supplies.
在必须佩带呼吸装置的情况下，同样必须有一名监护人全职负责保持呼吸空气供应。
May be used in machines compressing air for breathing purposes (such as air bottles for divers) provided all compressor units include subsidiary air clean-up apparatus.
亦适用于呼吸装置专用的空气压缩机，例如用于潜水的氧气樽，但必须配备副助空气清洗装置。
The patent reads: A self-contained open-circuit breathing apparatus for use within a body of water naturally containing dissolved air.
这项专利实质如下：一个孤立的绽放使用的电路呼吸器内的水固然含有溶气机构。
System performance testing, inspection & repair for air breathing apparatus and EEBD.
呼吸器、紧急逃生呼吸器性能试验、检修、检验；
System performance testing, inspection & repair for air breathing apparatus and EEBD.
呼吸器、紧急逃生呼吸器性能试验、检修、检验；
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