frequency-DC voltage converter
频率-直流电压变换器
A plot of dc voltage or current versus time normally produces a straight line.
直流电压或电流与时间的关系图一般成直线.
Vacuum tubes require DC voltage sources as well.
真空电子管也要求以直流电压为电源。
Electric cables and wires--Method for D.C. voltage test
GB/T3048.14-1992电线电缆直流电压试验方法
Multi-Pulse Voltage Source Converter Based on DC Voltage Injection
基于直流电压注入的多脉动电压源换流器
transistorized regulated DC power supply
晶体管直流稳压电源
D.C.resistive volt ratio boxes
GB/T3928-1983直流电阻分压箱
AC-DC digital voltage meter
交直流两用数字电压表
multiterminal HVDC transmission system
多端高压直流输电系统
two-terminal HVDC transmission system
二端高压直流输电系统
HVDC transmission line pole
高压直流输电线路极线
AC current or voltage source. DC offset can be specified.
交流电流源或电压源。可指定直流偏移。
Study on Active Fiber DC Transducer Used in HVDC;
高压直流输电有源光纤直流电流传感器的研究
Direct current cannot use transformers to change voltage.
直流电就不能用变压器来改变电压。
±800kV UHVDC Overvoltage Simulation Research;
±800kV特高压直流输电内过电压仿真研究
Calculation of Three-pulse Harmonic Voltage Source for HVDC Transmission
高压直流输电3脉动谐波电压源计算
Studies on Overvoltage During Full-Voltage Starting in HVDC Transmission System
高压直流输电系统全电压起动过电压的研究
Direct-current-controlled Voltage Source Rectifier (VSR) System Based on Digital Signal Processor;
基于DSP的直接电流控制电压型整流器