Both sculpt technique of 3d virtual model and key technique of realization of virtual model library with VRML are discussed thoroughly.
深入探讨了三维虚拟模型的造型技术和VRML(虚拟现实建模语言)实现机械制图网络虚拟模型室的关键技术。
The paper, based on the model of "block of time" cost calculator, makes a simple model to accommodate for the library practice of virtual reference services in our country.
在介绍“间隔时间”成本预算模型的基础上，对该模型进行简化，使其适合中国图书馆界虚拟参考咨询服务的实践。
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