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- national geodetic network 国家大地网
- It consists of three parts which are establishment of 2000 National GPS Geodetic Network,its combination adjustment with national astro-geodetic network and 2000 National Gravity Fundamental network. 它主要包括建立2000国家GPS大地控制网,2000国家重力基本网,以及前者与国家天文大地网的联合平差等,以实现国家3维地心坐标系统的坐标框架。
- national geodetic control network 国家大地控制网
- Geodetically, the configuration of geodetic network can not he fixed. 从测量角度来看，就是网的绝对位置无法确定，网形浮动。
- Kaiyuan from 12 years (AD 724), presided over large-scale delegation of the National Geodetic Astronomy, with Palace said, and others in Henan observation made by a group of the most successful. 从开元十二年（公元724年）起，一行主持大规模的全国天文大地测量，其中以南宫说等人在河南所作的一组观测最有成就。
- National Geodetic Satellite Program 国家大地测量卫星计划
- The combined adjustment of astro geodetic and space geodetic networks is of great significance for checking, controlling and strengthening the astro geodetic network, and for establishing and extending the geocentric coordinate system. 天文大地网与空间大地网联合平差 ,对于检核、控制与加强天文大地网以及建立与扩展地心坐标系 ,都具有重要意义。
- the third-order GPS geodetic network 三级GPS大地控制网
- Establishment of 2000 National Geodetic Control Network of China and It's Technological Progress 2000国家大地控制网的构建和它的技术进步
- You can plug into the national computer network. 你可以接通全国计算机网络。
- A combined adjustment(phase I) of the nationwide astro geodetic and GPS geodetic networks was accomplished early in 1998. The paper reports the principles adopted and the models used in the adjustment and presents results. 全国天文大地网与全国 GPS大地网联合平差 (I期 )于 1 998年初完成。 本文报告平差采用的原则和模型 ,并提出平差结果。
- Establishment of High Precision Geodetic Network in South China Sea 南海海域高精度大地控制网的建立
- Sequential Adjustment of Constraints in GPS and Geodetic Network GPS网与地面网约束条件的序贯平差
- Data Quality Assessment on the Third Order GPS Geodetic Network 三级GPS大地控制网观测数据质量检测
- Geodetic Network Technical Design in Support of Electronic Map 电子地图支持下的大地控制网技术设计
- Our newspaper is a national newspaper. 我们的报纸是全国性的报纸。
- The national debts of that country are rolling up. 那个国家的国债在不断地增加。
- Many of them wore colourful national costumes. 他们很多人都穿着色彩鲜艳的民族服装。
- Computers could be plugged into a national network and be used like radios. 计算机可以通过插座与全国计算网络联接，就象用一架收音机一样。
- October first is the National Day of China. 十月一日是中国的国庆节。
