vibrational sum rule

例句：

1. 1. The vibrational sumrule is used to calculate the energy levelsof atoms and molecules.
   振动和振动的和用于计算原子和分子的能量级。
2. 2.In quantum mechanics, the vibrationalsum rule states that the energy levels ofa system are determined by the sum ofits individual vibrational frequencies.
   在量子力学中，振动和振动的和法则表明一个系统的能级是由其单个振动频率的总和决定的。
3. 3. Thevibrational sum rule hasbeen successfully applied to predict thebehavior of materials under various conditions.
   振动和振动的和法则已被成功应用于预测材料在不同条件下的行为。