管道医用气体供应系统
piped medical gas supply system
支气管气道狭窄
tracheobronchial stenosis
软管供气式潜水器
hose-fed diving apparatus
PE燃气管道
PE gas pipe
polyethylene gas pipeline
PE Gai-fired Pipe
壁式氧气管道装置
mural oxygen tube equipment
不凝气管道
non-condensable gas pipeline
长距离输气管道
long distance gas transmission pipeline
长输油气管道
Oil and Gas Pipeline
Long-distance Oil and Gas Pipeline
Oil and Gas Long-distance Transmission Pipeline