中文摘要：

为解决当前矢量数据传输过程中单条数据传输链路网络带宽利用率不高的问题，该文引入多链路矢量数据并行传输技术，提升数据传输效率。以该技术为核心，采用集群数据存储的方式，构建矢量数据分布式并行查询与传输系统。多链路与单链路数据传输效率对比结果表明，多链路数据传输技术能充分利用单条链路未使用的剩余网络带宽，有效提高了数据传输的效率，该研究有助于提高大尺度矢量数据传输可视化的效率。

英文摘要：

How to organize and transfer large-scale vector data is a hotspot in the field of GIS. To solve the low-utilization of network bandwidth by using the single data transmission link of the vector data, the authors apply the multi-channel data transmission to increase the efficiency,and build a parallel query transmission system of distributed vector data by using the technolo- gy mentioned above and the cluster way of data storage. The contrast of the efficiency between multi-channel and single data transmission shows that the former mode improves the efficiency of data transmission by taking fully use of network bandwidth. This study will improve the efficiency of large-scale vector data＇s visualization.