directional distance relay
[广播英汉词典]
directional distance relayn.定向距离继电器
是什么意思,directional distance relay的解释,directional distance relay的翻译
[电信英汉词典] directional distance relay
[电力英汉词典] directional distance relay
[计算机英汉词典] directional distance relay
[进出口英汉词典] directional distance relay
[造纸英汉词典] directional distance relay