“positron emission tomography”的概念、定义、习题解题方法及翻译-物理辞典

单词	positron emission tomography
释义	positron emission tomography(PET) A type of tomography in which a natural biochemical substance containing positron-emitting isotopes is introduced into human tissues. This causes the emission of gamma radiation which is detected using a gamma camera. The sources of the gamma radiation are calculated using a computer. The resulting tomogram provides evidence for the positions of local concentrations of the substance containing the isotope. PET is used in metabolic and physiological studies in vivo
随便看	actinic radiation actinium actinium series actinoid contraction actinometer action at a distance action potential action spectrum activation analysis active device activity additive process adiabatic approximation adiabatic demagnetization adiabatic process admittance adsorbate adsorption advanced gas-cooled reactor aerial aerodynamics aerogenerator aeronautics aerosol aerospace

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。