Focusing on the improvement of the quality and efficiency of the reference services, evaluating indexes of visual reference services system are discussed in this paper.
以改进参考咨询服务的质量和提高咨询服务效率为中心，对建立虚拟参考咨询服务的评价指标问题进行讨论。
Visual reference points will make it easier later on to know how much more you have to go.
视觉参照点将会在随后你想知道还有多远的时候有所帮助。
Visual reference points will make it easier later on to know how much more you have to go.
视觉参照点将会在随后你想知道还有多远的时候有所帮助。
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