called a positron
叫做正电子
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The scans, which used a technique called positron emission tomography (PET), were designed to monitor changes in the way the brain metabolised glucose, the fuel it needs to function.
扫描利用了一种叫做正电子发射X射线层析照相术(PET)的技术。 扫描用以监测脑中代谢葡萄糖（脑正常工作需要的营养物）的变化。
youdao
Initially, Dr Zeki employed a scanning technique called positron-emission tomography to investigate these regions.
ECONOMIST: The biology of art
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