aimin order to improve approximating precision and reliability of gps leveling of imitated model in approximating abnormal height curved surface.
目的为了提高gps水準的拟合模型在逼近高程异常曲面时的逼近精度和可信度。
chinese culture such as ancient confucian books, system , history and geography were recommended getting in italy constantly, which made china become the imitated model of italy in the 17th century.