cumulative penetration

• 累积穿透

cumulative penetration的用法和样例：

例句

1. The ozone layer reduces the penetration of ultraviolet radiation.
   臭氧层能够降低紫外线的辐射穿透作用。
2. Only the penetration method has been used to any appreciable extent.
   只有穿透法获得了较广泛的应用。