Physics. Used of the apparent area (measured in barns or millibarns) of a nucleus, atom, elementary particle, etc., as representing the…
单词 | θ79332 |
释义 | the world > matter > physics > atomic physics > [noun] > particle interaction (2) cross-section1921 Physics. Used of the apparent area (measured in barns or millibarns) of a nucleus, atom, elementary particle, etc., as representing the… interaction1930 Reciprocal action; action or influence of persons or things on each other. spec. in Physics, referring to the action between atomic and subatomic… |
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