英语词汇“optical smoke detector”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	optical smoke detector
释义	optical smoke detector photoelectric smoke detector A sensor used to initiate a fire alarm when smoke reduces the light received by a photoelectric cell in a device containing a light source; most effective in the early detection of fires in the smoldering stage.
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optical smoke detector