单词	pair production
释义	pair production noun : the transformation of a quantum of radiant energy simultaneously into an electron and a positron when the quantum interacts with the intense electric field near a nucleus Word History First Known Use 1934, in the meaning defined above
随便看	ceftriaxone ceftriaxones cefuroximes cegeps ceiba ceibae ceibas ceibi ceibo ceiboes ceibos ceil ceiled ceilers ceili ceilidh ceilidhs ceiling ceiling climbing ceiling floor ceiling hook ceiling joist ceiling note ceiling plate ceiling unlimited

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