Supported platinum catalyst(for recycling tritium from heavy water or for producing heavy water especially designed or prepared, used for acceler- ating hydrogen and water, the hydrogen isotope exchange reaction between) 载铂催化剂(为了从重水中回收氚或为了生产重水而专门设计或制备，用于加速氢和水之间的氢同位素交换反应),
