gas connecting tube的意思|示意

通气管 ... 管 pipe; tube 通气管 aeration pipe; air box; air chimney; air duct; air flow pipe; air pipe/pipework; air vent pipe; air-vent tube; bleeding pipe; breather line; breather pipepiston; breather tube; breather vent; breather-pipe; breather-tube; breathing pipe; burnout pipe; delivery vent; gas connecting tube; gas shaft; gas vent; schnorkel; snorkel; snort; vapor pipe; vent hose; vent mast; vent pipe,vent; vent vapour pipe; ventilating pipe; ventilating tube; ventilation duct; ventilator tube 通气管；送气管 air pipe/pipework ...