英语词汇vacuum relay是什么意思，vacuum relay的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	vacuum relay
释义	vacuum relay　【电】真空继电器
随便看	weld joint weld joint efficiency weld junction weld layer weld length weld line weld machined flush weld mark weld metal weld metal area weld metal composition weld metal cracking weld metal deposition weld metal zone weld pass weld penetration weld polarity weld preheating weld preparation weld reinforcement weld repairs weld ripple weld root gap weld root opening weld rotation

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