After an immeasurably short time interval, the electron - positron pair recombine .

电子― 正电子偶经过一个不可测量的短暂时间间隔后就重新复合。

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Excited triplet diene is formed via back electron transfer between radical ion pair within a solvent cage.

处于溶剂笼中的三重态离子自由基对经电子反传，产生激发三重态二烯。

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This paper analyzes shell electron pair repulsion theory , valence-bond theory and molecular orbital theory on molecular structure of noble gas compounds.

对稀有气体化合物的分子结构分别用“价层电子对互斥理论”、“价键理论”和“分子轨道理论”进行了分析处理。

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WIMPS. The more massive members of each lepton pair are the electrically charged electron (the outer constituent of atoms) and two other particles that resemble electrons in all measurable ways except that they are heavier, and are unstable in today's modern universe.

ECONOMIST: Particle physics makes sense, but it assumes too much

These pairs are difficult to break up, so any intruding electron, unable to displace an incumbent from a pair, must occupy a higher, vacant energy level within the superconductor in order to stay put.

ECONOMIST: Microrefrigeration