Not for circulation : newspaper, periodical, reference book, cyclopaedia, CD-ROM and video cassette recorder. 不提供外借的资料:报纸、杂志、工具书、百科全书、CD-ROM光盘、录像带。
Due to high bandwidth resource requirement, how to support the digital video cassette recorder ( VCR ) functionality is a key problem in practical video on demand ( VOD ) systems. 视频点播中的VCR操作对网络带宽的高负载是实际VOD系统需要解决的一个关键问题。
They have dinner together. Perhaps they watch a movie on a video cassette recorder. 他们共进晚餐,也许看录像电影。
With the increase in broadcast time and channel, the old video cassette recorder play system is unfit to broadcast in Wujiang TV station. 吴江电视台原有的磁带录像机播控系统随着播出时间和频道数量的增加已不能满足需要,因此对播控系统进行改造已迫在眉睫,先进成熟的硬盘播出系统正好提供一个最佳选择。
Existing buffer strategies are mainly based on sliding window and data prefetch. However, the media on demand streaming hardly utilizes the buffer data when users perform VCR ( Video Cassette Recorder(VCR) ) operations frequently. 目前的对等节点缓存策略一般采用滑动窗口和预取数据的方式,但对于用户VCR(VideoCassetteRecorder)操作频繁的流媒体点播,不能有效地利用节点的缓存数据。