1)Bird saveall Bird,自动启动双鼓白水回收机2)Waco filter saveall,双鼓回收机3)automatic return water switch valve,回水自动启闭阀4)UAV automatic recovery,无人机自动回收5)drawing back automatically,自动收回6)waco filter Waco,白水回收机
用法和例句
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospheric hot water heating boiler room are discussed.