继电器 newelectrical relay的英文翻译是什么意思,词典释义与在线翻译:英英释义Noun:electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit electrical relay的用法和样例:例句I need to buy car relay ,please and contact us. 我们需要求购汽车继电器,请联系我们。Only one relay is closed at any time. 在某一时间,仅有一个继电器是闭合的。