单词	aluminum arsenide
释义	aluminum arsenide noun : a semiconductor AlAs used in the manufacture of electronic devices and lasers One device consists of layers of gallium arsenide and aluminum arsenide that emit and partially trap sound vibrations in the solid (phonons) oscillating in the terahertz range. J. R. Minkel, Scientific American, August 2006 Word History First Known Use 1919, in the meaning defined above
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