crossarm of knife switch
crossarm of knife switch
[电力英汉词典]
crossarm of knife switchn.闸刀开关横梁
是什么意思，crossarm of knife switch的解释，crossarm of knife switch的翻译
crossarm of knife switch
[电力英汉词典]
crossarm of knife switch是什么意思，crossarm of knife switch的解释，crossarm of knife switch的翻译