measurement of kinetic energy spectra of photoelectrons emitted by molecules which have absorbed ultraviolet photons, in order to determine molecular orbital energies in the valence region
紫外光电子能谱学（Ultraviolet Photoelectron Spectroscopy, UPS）是指通过测量紫外光照射样品分子时所激发的光电子的能量分布，来确定分子能级的有关信息的谱学方法。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).