词汇	suction throttling valve
释义	suction throttling valve 吸入节流阀
随便看	urban public traffic network urban public traffic networks urban public transit urban public transit network urban public transport urban public transportation urban public transportation hub urban public transportation service urban public transportation system urban public transportation terminal urban public transport evaluation indices Urban public transport fare structure urban public transport hub urban public transport network urban public transport sign urban public transport station urban public transport system urban public utilities urban public utility urban pupil urban pupils Urban Purity urban purple line urban Qiaoxiang urban quakeproof and disaster mitigation