direct-current

• Direct - current motor control
  电动机电子控制
• How to advance measuring accuracy of direct - current resistance of transformer
  如何提高测量变压器直流电阻值的准确性
• Volts direct - current working
  直流工作电压
• Direct - current linear variable differential transformer dc - dc lvdt displacement transducers
  直流差动变压器式位移传感器
• Test method for aluminium foil part 5 : test method for direct - current resistance
  铝箔试验方法.第5部分:铝箔的直流电阻试验方法
• Output direct - current
  输出直流电压
• The originate direct - current servo engine in china , dsp servo closed - loop control ,
  国内首创直流伺服电机驱动， dsp伺服闭环控制
• Study and applications on the type of high - voltage direct - current transformation system
  高压直流输电系统中线路结构的研究与实现
• Recommended practice for test procedures for high - voltage direct - current thyristor valves
  高压直流半导体闸流管阀试验程序推荐规程
• Measurement method for direct - current magnetic properties of temperature - magnetic compensation alloys
  温度磁补偿合金直流磁性测量方法