半罩面具 meaning in English
half mask
Examples
- Respiratory protective devices - self - contained open - circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only - requirements , testing , marking ; german version en 14435 : 2004
呼吸保护设备.设计只与增压供氧一起使用的带半罩面具 - Respiratory protective devices - self - contained open - circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only - requirements , testing , marking
呼吸保护设备.设计只与增压供氧一起使用的带半罩面具的自持式开路压缩气体呼吸设备.要求试验和标记