常見例句雙語例句It gives a whole view of the development and status of geocentric coordinate system, ellipse-centered coordinate system and world geodetic system in China.綜述了測繪工作中常用的幾類大地坐標系的建立方法,全面介紹了我國參心坐標系、地心坐標系和世界地心坐標系的發(fā)展及其現(xiàn)狀。Moreover, the local coordinate systems in the cities of our country lack in direct and precise connection to the geocentric coordinate system and the national coordinate system.此外,目前許多城市的地方坐標系統(tǒng)與國家坐標系統(tǒng)之間缺乏精確嚴格的換算關系。It is an important mission of Geodesy to improve an accuracy of control networks and to establish the geocentric coordinate system via combined satellite and terrestrial network adjustment.通過地面網(wǎng)與衛(wèi)星網(wǎng)的聯(lián)合平差,以改善網(wǎng)的精度和建立高精度的地心坐標系統(tǒng),是當前大地測量的一項重要任務。 返回 geocentric coordinate system