医用氧气
medical oxygen gas
medical oxygen
oxygen used in hospital
oxygen gas for medical use
医用氧气在医院的管理
Management of Medical Oxygen in the Hospital
呼吸流量计用换能器
pneumotachograph transducer
流量计用差压管
difference pressure piping for flowmeter
流量计用真空器
deairing vessel for flow meter
高流量氧气驱动雾化吸入
High-flow oxygen-driven aerosol inhalation
发动机进气质量流量计
engine mass air flow meter