正电子素飞行时间谱能够无损地给出材料开孔的尺寸、方向、以及内部连通性等性质。
Positronium Time of Flight Spectroscopy (Ps-TOF) represents the properties about the pore size, direction and inner-connection in materials.
电子偶素，正电子素电子与正电子的短暂结合物，两者的结合物与氢原子的结构十分相似。
A short - lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom.
介绍了一种奇特原子-正电子素的基本性质及作为探针研究化学反应历程、探测中间产物的实用性。
The characteristics of positronium, a kind of exotic atoms, and the applicability of using it to probe the reaction mechanism and the active intermediates are briefly introduced.
探讨正电子偶素的物理性质以及正电子—电子对的湮灭方式。
We investigate physicss properties of positronium and the way of positron - electron annihilation.
微扰的方法在正电子与原子的三射中忽略了电子偶素形成和电离通道；
The perturbative methods for positron-atom scattering omitted Ps formation and ionization channels.
微扰的方法在正电子与原子的三射中忽略了电子偶素形成和电离通道；
The perturbative methods for positron-atom scattering omitted Ps formation and ionization channels.
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