英语词汇“photoelectric plethysmograph”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	photoelectric plethysmograph
释义	photoelectric plethysmograph photoelectric plethysmograph [¦fōd·ō·i′lek·trik plə′thiz·mə‚graf] (medicine) A medical instrument for measuring and recording ear opacity by means of a tiny phototube and lamp clipped to the ear, as a measure of the state of fullness of blood vessels; also worn by aircraft pilots during high-altitude flights, as an alarm indicating the need for more oxygen.
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