direct current amplifier
direct fast blue B 2R L
direct fast scarlet dye
1 000 kV ultra-high voltage direct current
3-D direct current survey
三维直流电法
救护飞机(Airam bulances)
accumulator direct current supply
activating tungsten inert-gas welding with direct current straight polarity mode
brushless direct current motor
conductance for direct current
CT Direct Current Speed Governing System
Direct current
直流
直
直流电流
直流电源
直流系统
直流电报
直流电场
直流电阻
直流机
直流电动机
低水平直流电疗
6RA24直流装置
直流发电机
直流安培计
直流电动机控制器
直流电
direct current (DC) system
Direct current amperometric detection
direct current apparent resistivity
Direct Current Arc Discharge
Direct Current Arc Furnace