Non-verbal communication is often used in book circulation service. and this type of communication can not be without culture.

流通服务中经常使用非语言沟通，而这种沟通方式离不开文化。

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But the difference of book Circulation Protocol brings great difficulties to the integration of book management systems and self-service equipments in libraries.

不同的图书流通交换协议之间的差异给图书流通管理系统以及自助借还设备之间的集成带来了难度。

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