After all,it is the intent of these products to either prevent accidents from occuring in the first

题目

After all,it is the intent of these products to either prevent accidents from occuring in the first place or to reduce the injuries suffered by the wearer should an accident occur.
这句话,明白是the intent of...,但是后面的should an addcident occur 是什么呢?不太明白语法结构,请高人指教,
If is at least likely that those who wear gear may be generally more responsible and/or safety conscious individuals.

答案

After all,it is the intent of these products to either prevent accidents from occuring in the first place or to reduce the injuries suffered by the wearer should an accident occur.毕竟,它的意图是这些...