This kind of online display method is direct, convenient and easy to be operated with regard to data inquiry and trend analysis. Therefore, the vernier is a reasonable, applicable and original design.

这种在线显示方式既直观、方便，又便于操作人员进行数据查询和趋势分析，因此游标是一种既合理、适用，又具有创新性的设计。

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This article makes an analysis of the characteristics of libraries under the environment of networks, and probes into the problems of online reference inquiry service.

分析数字环境下图书馆参考咨询工作特点，探讨网上参考咨询及服务问题。

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