Many firms ,have great difficulty in obtaining books because

Many firms ,have great difficulty in obtaining books because they are unwilling to have their names entered as having taken out such and such a book .我想知道as在这里的用法,是连词吗,或者介词?新概念的翻译是:因为他们不想让人家记下它们公司的名字和借阅的某一本书.as被翻译成了"和",本人有点理解不了.
新概念是权威的,我想知道准确的解释,一楼你的回答也太没水平了吧.......