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...
The obverse of rising unemployment is continued gains in productivity.失业率上升，相对应的是生产率进一步提高。The result has been a giant leap in productivity.其结果是生产力的大幅提高。Wages were rising faster than productivity and this was eating into ...
the North York moors北约克郡的漠泽The party had been to the grouse moors that morning.这群人那天上午去了松鸡猎场。Colliford is higher, right up on the moors.科利福德位置更高，就在荒野之上。Here are aged Moors with flowing white beards, and long white robes ...