Warning: file_put_contents(): Only 0 of 6363 bytes written, possibly out of free disk space in /www/wwwroot/ppbbbu/202081.com/index.php on line 55 positron emission tomography英英字典_positron emission tomography剑桥英语解释_positron emission tomography柯林斯英文解释_2020年的事情英文词典
1. N a technique for assessing brain activity and function by recording the emission of positrons from radioactively labelled substances, such as glucose or dopamine 正電子發射計算機斷層掃描