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。
Network technology provides effective reference data for the measuring problem. Based on the statistical analysis of the measured data we can make whole operation for the network.
网络测量技术为这些问题的解答提供了有效的参考数据，并能够提供网络总体运行的相关数据。
There is great obstacle for users to look up reference under network environment, therefore, professional library should develop characteristic data base vigorously.
网络环境下用户检索存在着巨大障碍，专业图书馆应大力发展特色数据库。
Failure rate data of heating network components of Beijing and Shenyang could be taken as a reference for reliability research of heating networks in China.
北京和沈阳热网元件故障率可作为我国热网可靠性研究的参考数据。
Continuous operational reference system is one of the infrastructures of spatial data, CORS system nationwide network is imperative.
连续运行卫星定位服务系统(CORS)是空间数据基础设施之一，CORS系统全国联网势在必行。
The theory calculation of double network t reference data, based on the kirchhoff equation of electric voltage and current to get t reference data through algebra calculation.
双口网络t参数的理论计算，是通过建立基尔霍夫电压和电流方程，经过代数运算求出t参数。
The theory calculation of double network t reference data, based on the kirchhoff equation of electric voltage and current to get t reference data through algebra calculation.
双口网络t参数的理论计算，是通过建立基尔霍夫电压和电流方程，经过代数运算求出t参数。
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