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
left half-plane
left half-tangent
left-hand
left-hand cancellation
lefthand circularly polarized light
left-hand circular polarization
left-hand derivative
left-hand differentiability
left-hand disguised handwriting
left-handed
left-handed circular polarization
left-handed circular polarized wave
left-handed co-ordinate system
left-handed coordinate system
left-handed crystal
left-handed current
left-handed curve
left handed elliptically polarization
left-handed elliptically polarization
left handed elliptically polarized light
left-handed elliptically polarized light
left-handed helix
left-handed light
left-handed lower continuous
left-handed material
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:2026/9/9 1:54:04