three-pole knife switch
three-pole knife switch
[海运英汉词典]
three-pole knife switch三极闸刀开关
是什么意思，three-pole knife switch的解释，three-pole knife switch的翻译
three-pole knife switch
[海运英汉词典]
three-pole knife switch是什么意思，three-pole knife switch的解释，three-pole knife switch的翻译