1. The kitchen was counterchanged so there would be more space.
厨房被弄成错落有致，所以会有更多的空间。
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2. In terms of SU (1, 1) algebra, the eigen equations of three-dimensional Harmonic Oscillator and hydrogen atom in inverse square potential are counterchanged the same equations in form.
借助于SU（1,1）代数，将三维谐振子与加反平方势的三维氢原子表示成具有相同形式的两算符下的本征值方程。