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

单词	emergency signalling
释义	emergency signalling　事故信号装置
随便看	severe attack severe attack severe attrition severe chimatlon severe cold severe cold severe condition severe condition severe depression severe depression severe earthquake severe earthquake severe etch virus severe expression severe expression severe frost severe frost severe frost severe gradient severe judgment severe penalty severe penalty severe penalty severe reprimand severe reprimand

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