Only in this way can the critical mass of participation be reached.只有这样才能凑足参与人数。Each year, hundreds of animals are killed in this way.每年都有数百只动物被这样杀掉。In this way we get better results in teaching.这样我们的教学效果就比较好了....
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.Aim The Hamiltonian is transformed from Pauli matrices to Hubbard operators.目的把用Pauli矩阵表示的哈密顿量转化成用Hubbard算符表示....