“low-energy positron diffraction”的概念、定义、翻译、参考文献-科学参考

单词	low-energy positron diffraction
释义	low-energy positron diffraction [`lō ´en·ǝr·jē `päz·ǝ´trän di´frak·shǝn] ^{SOLID-STATE PHYSICS} A technique for studying the atomic structure of solid surfaces in which a narrow beam of low- energy monoenergetic positrons is made to strike a solid surface, and the diffracted beams in certain directions that are permitted by the regular array of surface atoms are observed. Abbreviated LEPD.
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