单词	压力真空阀
释义	压力真空阀pressure-vacuum valve
随便看	alignment chart -- alignment diagram alignment chart ; alignment diagram alignment chart; nomogram alignment chart，nomogram，nomograph alignment clause alignment code alignment coil alignment-- collision alignment connector alignment correction alignment correction to taped length alignment curve alignment diagnostic alignment diagram alignment disk alignment diskette alignment dog alignment error alignment--error alignment frame alignment function alignment function alignment indicator alignment instrument alignment interaction