半面罩
- 网络half mask
半面罩-
半面罩式呼吸防护器诊断用X射线管防护罩
Half-mask respirator diagnostic-type protective tube housing
-
半面罩式呼吸防护器套在褥子外面用来保护褥子的防护罩。
Half-mask respirator a protective covering over a mattress to protect it .
-
半面罩式呼吸防护器消防过滤式自救呼吸器
Half-mask respirator filtering respiratory protective devise for self-rescue from fire
-
半面罩式呼吸防护器这个罩保护机器使灰尘落不到上面。
Half-mask respirator The cover protects the machine from dust .
-
半面罩式呼吸防护器风罩再生式空气预热器
Half-mask respirator Rothemuhle regenerative air preheater
-
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。
Respiratory protective devices-Compressed air line breathing apparatus for use with a full face mask , half mask or a mouthpiece assembly-Requirements , testing , marking .