“capture”的概念、定义、习题解题方法及翻译-物理辞典

单词	capture
释义	capture Any of various processes in which a system of particles absorbs an extra particle. There are several examples in atomic and nuclear physics. For instance, a positive ion may capture an electron to give a neutral atom or molecule. Similarly, a neutral atom or molecule capturing an electron becomes a negative ion. An atomic nucleus may capture a neutron to produce a different (often unstable) nucleus. Another type of nuclear capture is the process in which the nucleus of an atom absorbs an electron from the innermost orbit (the K shell) to transform into a different nucleus. In this process (called K capture ) the atom is left in an excited state and generally decays by emission of an X-ray photon. Radiative capture is any such process in which the capture results in an excited state that decays by emission of photons. A common example is neutron capture to yield an excited nucleus, which decays by emission of a gamma ray
随便看	Newton, Sir Isaac Newtonian fluid Newtonian mechanics Newtonian telescope Nichrome nickel silver nickel-cadmium cell nickel-iron accumulator Nicol prism NIFE cell nit NMR no-hair theorem nobelium nodal points node Noether's theorem noise nomogram non-Euclidean geometry non-Newtonian fluid nonequilibrium statistical mechanics nonequilibrium thermodynamics nonlinear optics nonmetal

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。