词汇	预存询问
释义	预存询问 prestored query
随便看	relay transport relay tree relay tree circuit relay tube relaytype relay type relay-type relay type recorder relay-type recorder relay type recording ammeter relay type recording instrument relay-type recording instrument relay type recording voltmeter relay type recording wattmeter relay types relay type servo relay-type servomechanism relay typing calculator relay underreaching protection relay unit relay unit circuit relay valve relay valve body relay valve diaphragm spring relay valve disphragm spring