Warning: file_put_contents(): Only 0 of 6292 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.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_零食美味英文词典
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 正电子发射计算机断层扫描