| 单词 | 正电子 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔FDG〕FDG-PET is an imaging test to identify lymphomas and other cancers.氟18脱氧葡萄糖正电子计算机断层扫描是一种可用来确认淋巴癌和其他癌症的影像测试。剑桥高阶〔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〔PET scanning〕The act or process of using a PET scanner.正电子发射层析扫描：用正电子发射层析扫描仪的动作或过程美国传统〔PET scan〕A cross-sectional image produced by a PET scanner.正电子发射层析扫描图：由正电子发射层析扫描仪所绘制的模截面图美国传统〔PET scan〕The researchers carried out a PET scan to monitor his brain activity.研究人员采用正电子计算机断层摄片来监看他的大脑活动。剑桥高阶〔annihilate〕To participate in annihilation, as do an electron and a positron.湮灭，湮没：湮灭，如电子与正电子美国传统〔positronium〕A short-lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom.电子偶素，正电子素：电子与正电子的短暂结合物，两者的结合物与氢原子的结构十分相似美国传统 |
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