电压表 [电] voltmeter ; PV ; [电] Voltage Meter ; VOLT
气压表 [气象] barometer ; air gauge ; air pressure gauge ; rain glass ; barometer
数字电压表 digital voltmeter ; DVM ; Digital Voltage Meter ; Digivol
油压表 oil pressure gauge ; oil press ; Oil pressure indicator ; pressure gauge
电子管电压表 [电] vomax ; vacuum tube voltmeter ; valve voltmeter ; electronic voltmeter
空盒气压表 [气象] aneroid barometer ; dial barometer ; anoid barometer ; aneroidometer
水银气压表 meroury barometer ; mercurial barometer
标准气压表 [气象] normal barometer ; standard barometer
电压表切换开关 SV ; VM SW VOLTMETER SWITCH
本实用新型涉及一种防冻、防盗回压表阀。
The utility model relates to a back-pressure gauge valve which is freeze proof and theft proof.
换下来的元件重新（用压表、电流表）测标其电阻值，配阻用在低温区。
Test and mark the resistance value of the old elements having been replaced (with voltmeter and ammeter) and distribute them in low temperature area.
方法：用真空负压表、延迟控制线路，接通电话机免提键、存储拨号键。
Methods The vacuum negative pressure meter and the delayed control line were used.
应用推荐