任何一个图书馆,文献利用率、拒借率的高与低,都要有个“界限”,这个“界限”也是衡量图书馆读者工作水平的一把尺子,确定了文献利用率、拒借率的允许范围,即文献利用率的最低值和拒借率的最高值,也就找到了这把尺子,下面笔者以沈阳农业大学图书馆外文原版期刊和中文图书的利用情况为例,用(?)—R 质量控制图来探讨这个问题。 Any one library, the utilization rate of literature, high and low borrowing rate must have a “boundary”, this “limit” is also a measure of the level of library readers a ruler to determine the utilization of the literature, rejection rate Of the allowable range, that is, the lowest value of the utilization rate of the document and the highest value of the borrowing rate, also found the ruler, the following author of the Shenyang Agricultural University Library original foreign language journals and the use of Chinese books, for example, with (? ) -R quality control chart to explore this issue.