直: straight; stiff静止式直龄流: direct current static convertor直龄电: direct current distribution; direct current transmission直龄却: once through cooling高压直龄电: high voltage dc transmission直龄电线路: direct current transmission line直龄换器: direct current converter直龄压器: dc transformers直龄压器直隶感器: direct current transformer直羚报: direct current telegraphy直菱速发电机: dc tachogenerator直羚刺激试验: galvanic test直菱量: direct current measurement
