图书流通率 meaning in English

a ual circulation
annual circulation

Exploration and practice on improving book circulation
提高图书流通率的探索与实践
Electronic commercial system for online bookstores deals with book business through internet and highly increases the circulating rate of books by associating readers , books , publishers and issuers closely
网上购书电子商务系统通过互联网进行图书的交易活动，将广大读者、图书、出版者、发行者紧密地结合在一起，大大提高了图书流通率。