“portable gas alarm”的概念、定义、翻译、参考文献-科学参考

单词	portable gas alarm
释义	portable gas alarm Encyclopedia 工学信号报警装置释 portable gas alarm便携式气体报警仪当监测到某类气体或多种气体的浓度超过设定阈值时，通过声、光、振动等方式告知人们的便于携带的报警装置。
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