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2000国家大地坐标系统
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2000国家大地坐标系统
Encyclopedia
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大地起算数据
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China Geodetic Coordinate System 2000; CGCS 2000
2000国家大地坐标系统
协议地球坐标系的一种。坐标系原点为包括海洋和大气的整个地球的质量中心,尺度为在引力相对论意义下局部地球框架的尺度,定向的初始值采用国际时间局1984.0的定向,定向的时间演化保证相对于地壳不产生残余的全球旋转。
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language
language acquisition
language acquisition device
language acquisition of sign language
language analysis
language and brain
language and cognition
Language and Culture
Language and Representation in Information Retrieval
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language art rhetoric school
Language Assessment Quarterly: An International Journal
language assistance tools
Language Atlas of China
language attitudes
language blending
language bonus share
language borrowing
language capital
language census
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language competence
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language conflict
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