请输入您要查询的字词:
单词
Beijing Geodetic Coordinate System 1954
释义
Beijing Geodetic Coordinate System 1954
Encyclopedia
工学
大地起算数据
释
Beijing Geodetic Coordinate System 1954
1954北京坐标系
在中华人民共和国成立初期,通过与苏联大地网联测,将中国的一等锁于1953年与苏联远东一等锁相连接,大地坐标是通过两国联测的呼玛、吉拉林基线网以及东宁基线网附近北朝阳堡、鲁明台按普兰尼斯-普拉尼维奇法,以角度为元素在高斯面上平差传算坐标,利用当时中国东北地区部分一等三角锁进行局部平差而确定的坐标系。
随便看
pretzel
pretzel curve
pretzel knot
pretzel-like link
pretzel transformation
prevailing wind direction
prevalence of disability
prevalence rate
prevalence study
prevalent-epidemic-pathogens
prevariety
preventable cases in neighborhoods
preventer
preventing collisions at sea
preventing further attack of malaria
preventing natural disasters laws
Preventing suicide: a resource for media professionals
Preventing Suicide:A Resource for Media Professionals
prevention and control forest biological disaster
prevention and control law on meteorological disaster
prevention and control of biosafety and biosecurity
prevention and control of bird strike at airport
prevention and control of feed microbial contamination
prevention and control of infectious disease in railway
prevention and control of malodorous gases
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/1/18 16:52:31