gas piping
... gas PI 采气指数 gas pipe line 输气管道 gas piping 输气管 ...
gas pipe
... gas pipe tap 气管丝锥 gas pipe 输气管 gas pipette 验气管球 ...
air delivery pipe
... air delivery 排气 air delivery pipe 输气管;导气管 air density correction factor 空气密度校正因数(电晕梯度的) ...
air manifold
air manifold 集合管 ; 压缩空气系统分路阀箱 ; 输气管 ; 气包 Manifold hood 歧管外罩 ; 坡管外罩 ; 歧管外罩 .