positron
英 [ˈpɒzɪtrɒn] 美 [ˈpɑzɪtrɑn]

n.

正电子；阳电子；

英英释义

positron[ 'pɔzitrɔn ]

• n.an elementary particle with positive charge; interaction of a positron and an electron results in annihilation

  同义词：antielectron

词组短语

positron emission正电子发射

positron emission tomography[化]正电子成象术；正电子放射断层造影术

positron annihilation正电子湮没；阳电子湮没

双语例句

用作名词(n.)

1. The result is that the electron shadow and the positron shadow are separated.
   结果将使得电子的阴影和正电子的阴影被分开。
2. 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。

权威例句

Positron emission tomography study of human brain functional development
Positron emission tomographic studies of the cortical anatomy of single-word processing
Preoperative staging of non-small-cell lung cancer with positron-emission tomography
Localization of a human system for sustained attention by positron emission tomography.
18F-2-deoxy-2-fluoro-D-glucose as a tracer in the positron emission tomographic study of senile dementia
Use of positron emission tomography for response assessment of lymphoma: consensus of the Imaging Subcommittee of International Harm...
Schizophrenia and cognitive dysmetria: a positron-emission tomography study of dysfunctional prefrontal-thalamic-cerebellar circuitry.
Coronary flow reserve calculated from pressure measurements in humans. Validation with positron emission tomography
The effect of divided attention on encoding and retrieval in episodic memory revealed by positron emission tomography
Age-Related Differences in Neural Activity during Item and Temporal-Order Memory Retrieval: A Positron Emission Tomography Study