data channel中文什么意思

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1. The thesis considers it necessary for universities to set up a system of educational cost calculation and then make this system both the main data channel of educational costs and a useful tool in educational supervision
   对高校教育成本核算方法：会计核算法和会计调整法组织了较系统的探讨。本文认为高校应建立教育成本核算制度，使之既成为产生教育成本数据的主渠道，又成为教育管理的有效工具。
2. In order to expand the transceiver channel so as to solve the restrains of card slot number in data loop system , the quad el transceiver is designed , which enlarge the band breadth of data channel from 2mbps to 8mbps , and enables 120 clients simultaneously to communicate
   该四路e1收发器能够提供四条e1链路，把带宽从2mbps提高到8mbps ，能够同时负载120个用户的通信，解决了数字环路系统中卡槽数目限制的问题。
3. Owing to the fact that interfaces abis are usually 16 kbits sub - channels , they cannot support the cs3 and cs4 coding schemes . the gprs wireless channels adopt the cs1 signaling system and the data channels adopt the cs1 and cs2 signaling systems flexibly depending on the interference
   由于abis接口一般是16kbits的子信道，目前不能支持cs3cs4两种编码方式， gprs无线信道的信令采用cs1方式，数据业务信道可以根据不同的干扰情况灵活地采用cs1和cs2方式。
4. Fifo data channel of pci interface chip s5933 and approach of realizing pci bus master dma through the fifo is introduced in detail . the reason for choosing s5933 ' s fifo to transfer data at high speed is clarified . secondly , the design process of hardware is introduced
   文中首先介绍了pci总线的协议，讨论了pci接口的实现途径，并详细介绍了pci接口芯片s5933的fifo通道及其总线主控dma方式的实现方法，阐明了选用s5933的fifo通道进行高速数据通信的原因。
5. This multi - layer fontal machine system completely conform to the request of unified terminal join - in , reduced burden of main machine , multichannel compatibility and easy extension under data centralization ; the communication layer with fore - born child process is easy for extending to integrate some other communication data channels
   这种多层的前置机系统，符合数据大集中对统一终端接入、减轻主机负担、多通道兼容和易扩充的要求；基于tcp ip的预先派生子进程的通讯层设计容易扩充集成多种数据通道。