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词汇	positron emission tomography
释义	positron emission tomographyn.（名词）abbr. PET【缩写】positron emission tomographyscan of a human brain during sleep Tomography in which a computer-generated image of a biological activity within the body is produced through the detection of gamma rays that are emitted when introduced radionuclides decay and release positrons.正电子发射X射线层析照相术：照相术，通过引进的放射性核素发生衰变而释放的正电子发射的伽玛射线来探测体内的生理活动，并通过计算机将其成像
随便看	subside subsided subsides subsidiaries subsidiary subsidiary cell subsidiary company subsidies subsiding subsidise subsidiser subsidize subsidized subsidizes subsidizing subsidy subsist subsisted subsistence subsistences subsisting subsists subsoil subsolar subsonic

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