请资深语法专家给我个解答,问了很多次都没有人能告诉我.Andtheindustrygripesthatthereisremarkablylittleindependentoversightofthebureau,shoulditrunamokwithnewregulationsthatstiflelegitimateproducts.这个句

Question

请资深语法专家给我个解答,问了很多次都没有人能告诉我.
And the industry gripes that there is remarkably little independent oversight of the bureau,should it run amok with new regulations that stifle legitimate products.
这个句子中should到底是什么用法?是虚拟语气,还是什么特殊用法?
我给你的句子并不符合虚拟语气的结构啊！一楼，你始终不明白我在问什么。你说的那个我懂，但是放到本句中解释不通啊！麻烦你看看本句在作答行吗？如果我有时间查语法书，我还上来问什么！

Answer 1

should倒装句一般表示的是虚拟语气,表示语气较强的假设,意思是“万一”,“竟然”.
Should you come to Brunei,you would have to take oof your shoes before going into someone's house!= If you should come to Brunei,...
虚拟句中不一定都用到would have,详情请参阅语法书籍.