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.A multi - distorted invariant orthogonal moments, Jacobi - Fourier moments ( JFM ), were proposed.提出一种多畸变不变的正交...
a Beethoven string quartet贝多芬弦乐四重奏曲Beethoven was a towering musical genius.贝多芬是一个伟大的音乐天才。The music of Irving Berlin is scarcely comparable to that of Beethoven.欧文·伯林的音乐很难与贝多芬的媲美.The Lithuanian Philharmonic Orchestra play...