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。
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。
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