disintegration rate

• 衰变率

disintegration rate的用法和样例：

例句

1. By using the narrow-width approximation we find a sum rule for the decay rate of the string resonances with different spins at each mass level.
   藉著使用狭窄宽度近似，我们找到一个联加的规则可以计算衰变率与截面积。