“alpha particle”的概念、定义、习题解题方法及翻译-物理辞典

单词	alpha particle
释义	alpha particle A helium–4 nucleus emitted by a larger nucleus during the course of the type of radioactive decay known as alpha decay . As a helium–4 nucleus consists of two protons and two neutrons bound together as a stable entity the loss of an alpha particle involves a decrease in nucleon number of 4 and decrease of 2 in the atomic number, e.g. the decay of a uranium–238 nucleus into a thorium–234 nucleus. A stream of alpha particles is known as an alpha-ray or alpha-radiation
随便看	supercluster superconductivity supercooling supercritical superficial expansivity superfluidity supergiant supergravity superheavy elements superheterodyne receiver superlattice supermembrane theory supernova superplasticity superposition principle supersaturated solution supersaturation supersonic superstring theory supersymmetry supertransuranics supplementary units suppressor grid surd surface integral

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。