positron emission tomography
正电子发射体层扫描
The positron is an antielectron.
正电子就是反电子。
positron annihilation spectroscopy
正电子湮没谱学
positron emission transaxial tomography
正电子发射型横轴断层成像术
positron emission transverse tomography
正电子发射横体层摄影术
The antielectron, or positron, was discovered in 1932.
反电子或正电子，是在1932年被发现。
It was a very difficult first step to accept the positron.
接受正电子是艰难得第一步。
A study of microstructure of EBC coating by slow positron beam
慢正电子束研究电子束固化涂层的微观结构
To participate in annihilation, as do an electron and a positron.
湮灭, 湮没湮灭, 如电子与正电子
an electron with a negative charge, as contrasted with a positron
带有负电荷, 与正电荷相反的电子
A Study of Positron Annihilation of Internally Sensitive Emulsions
内敏乳剂的正电子湮没研究
An electron with a negative charge, as contrasted with a positron.
电子带有负电荷, 与正电荷相反的电子
The vacancy defects of samples were measured by slow positron annihilation.
借助慢正电子湮没技术研究了样品的空位型缺陷。
Later, electron and positron pairs were actually produced in laboratory experiments.
之后，电子与正电子对也最终在实验室中被制造出来。
This is the mathematical basis of computed tomography and positron emission tomography.
这是计算机层析成像和正电子层析成像得数学基础。
Study on colorific mechanism of topaz after irradiated by positron annihilation technique
用正电子湮没技术研究黄玉的辐照变色机理
For instance, the antimatter opposite of an electron, known as a positron, is positively charged.
例如，电子的反物质就是带正电的质子。
U is potentiometer and used for the open degress meter to indicate the open and close positron of the valve.
为电位器，供控制室内开度表指示阀门的开关位置。
Beijing Spectrometer is an experimental facility of high energy physics on Beijing Electron Positron Collider.
北京谱仪是北京正负电子对撞机上的高能物理实验装置。
THE MEASUREMENT OF FERMI ENERGY LEVEL OF ELECTRON IN METAL BY POSITRON ANNIHILATION DOPPLER BROADENING SPECTROMETER
用正电子湮没多普勒增宽谱测量金属中电子的费米能级
The automatic data acquisition and processing for positron annihilation lifetime spectra and Doppler broadening spectra
正电子湮没寿命谱和多普勒展宽谱的自动获取和处理技术
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