ratio voltage造句

• A method of the calibration of special ratio voltage transformer
  一种特殊变比的电压互感器校准方法
• Load tap switch is the central contrivance in load - ratio voltage regulation of transformer
  有载分接开关是变压器有载调压的主要装置。
• Load - ratio voltage regulation of transformer is the voltage regulation , which has larger regulating scope and less investment and higher speed and well effect in power - on conditions
  这种调压措施，调压范围大，投资少，效果好，调压范围一般为15及以上。