breathing mouthpiece

常見例句

雙語例句

• 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(hù)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(dǎo)琯呼吸裝置。要求、試騐和標(biāo)志。
返回 breathing mouthpiece