“beam spread”的概念、定义、翻译、参考文献-科学参考

单词	beam spread
释义	beam spread [`bēm ´spred] ^ENGINEERING The angle of divergence from the central axis of an electromagnetic or acoustic beam as it travels through a material.
随便看	ephemeral plant ephemeral stream Ephemerida ephemeris ephemeris day ephemeris second ephemeris time Ephemeroptera ephidrosis Ephydridae ephyra ephyrula EPI epi- epiandrum epibasidium epibiotic epiblast epiblem epiboly epibranchial epicadmium epicalyx epicardium Epicaridea

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