2020-04-22 17:38发布
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%\usepackage{amsmath} \[\sideset{_h}{_h}{\mathop{\langle\psi|Q_h|\psi\rangle}}\]
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%\usepackage{amsmath} \[\sideset{_h}{_h}{\mathop{\langle\psi|Q_h|\psi\rangle}}\]一周热门 更多>