供气管道: air supply ductair supply line pipeair-delivery ductair-supply ductgas supply linesupply air duct
Example Sentences:
1.
It allows maximum flow from the air supply valve ; it makes people easy to breath by appropriate air supply in dangerous working condition 供气阀流量大,呼气阻力小,且可大流量调节,使作业人员在任何险恶环境下,工作轻松自如。