As the pivotal part in the router design, network processor not only has the function of ASIC, but also has the program ability of general CPU, so it has high performance in speed and program.
网络处理器作为路由器设计的关键部分，不仅具有ASIC的功能，同时有着通用CPU的编程能力，在速度与可编程方面均有着优良的性能。
The function and the performance of existing on-line examination systems haven't satisfied the need of large-scale application, especially in safe transmission of network.
现有网上考试系统在功能上还不够完备，其性能和适用范围都难以适应大规模应用的需要，尤其是在网络安全方面缺乏保障。
According to the design principle of the map symbol, design the travel map symbol and visual function, the scheme of the symbol data store reference and network performance.
根据地图符号的设计原则，设计旅游地图符号及可视化功能，旅游符号数据存储和索引方案及网络性能优化方案。
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