直: straight; stiff量: measure capacity电菱量: current measurement交菱量: alternating current measurement反向电菱量: reverse battery metering; reverse current metering气菱量站: gauging station直菱速发电机: dc tachogenerator直吝压输电: direct current high tension transmission直龄电: direct current distribution; direct current transmission直吝时计: direct current watt hour meter直龄电线路: direct current transmission line直吝路: direct current line直龄换器: direct current converter直林量插入: direct current insertion直龄流: dc current transformer直林量: direct current component; zero frequency component
