For a system, Hamiltonian is invariant under any translation of spatial coordinates.对于一体系, 哈密算符在任何空间坐标变换下是不变的.In other words, The Hermiticity of a matrix is invariant under unitary transformations.换言之, 矩阵的厄密性在幺正变换下保持不变.O...
莉莉给儿子当球童。Lili caddied for her son.球童跑过去给他拿东西。The caddie ran over to fetch something for him.你听说过球童参加公开赛的事情 吗 ?Did you hear about the caddie playing in the Open?...