breathing mouthpiece
常见例句
- 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。 返回 breathing mouthpiece