Nowadays, major changes have taken place in modern surveying and mapping technology, and these changes are mainly embodied in the three aspects of theory, technology and application. The application of modern surveying and mapping technology is helpful to the study of the earth and natural environment, can help human to explain some natural phenomena, and even contributes to solving major problems existing in social development and national economy. The function and development trend of modern surveying and mapping technology are described in this paper.%社会发展到今天,现代测绘技术发生了重大变革,这些变革主要体现在学科理论、技术水平和应用范围三个方面.现代测绘技术的应用有助于人类对地球和自然环境的研究,有助于人类对某些自然现象的解释,更有助于社会发展和国民经济中的重大问题的解决.本文就现代测绘技术的作用和发展趋势进行了阐述.
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