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- primary geodetic network 一等大地控制网
- 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。
- 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。
- 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
- 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
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然,我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
- An Approach to the Height Anomaly in Synthetic Geodetic Network of Distance and Angle Measurements 用边长改正数求取测区平均高程异常
- Primary education comes under the umbrella of local government. 小学教育受地方政府的保护。