新概念第四册一个句子In So far as any inquiry is a secret one,it natura

新概念第四册一个句子
In So far as any inquiry is a secret one,it naturally limits all those engaged in carrying it out from effective contact with their fellow scientists either in other countries or in universities ,or even,often enough,in other departments of the same firm.这句话里面 carrying it out 是分词短语做宾语吧 还有这个one代指什么