“positron emission”例句

单词	positron emission
例句	DEFINITIVE EXAMPLES 权威例句〔PET scanner〕A device that produces cross-sectional x-rays of metabolic processes by means of positron emission tomography.正电子发射层析扫描仪：一种装置，通过正电子放射的X射线断层照相术产生的模截面X射线的代谢过程美国传统

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“positron”例句

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