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国际习用原点
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国际习用原点
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地球参考系统
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conventional international origin;CIO
国际习用原点
为了统一全球地面坐标系统和便于研究极移,1967年国际天文学联合会(IAU)、国际大地测量和地球物理联合会(IUGG)决定采用统一的地极坐标原点,称为国际习用原点。
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chemical stability
chemical stability condition
chemical stability of pharmaceutical preparations
chemical statistics
chemical sterilization
chemical stimulation
chemical stoichiometric equation
chemical storage enterprise
chemical structure and properties of drug
chemical structure coding
chemical structure file format
chemical structure of kerogen
chemical structure retrieval
chemical structure storage format
chemical substance
chemical substance; chemicals
chemical supervision
chemical supply chain Integration
chemical surface treatment
chemicals used in semiconductor integrated circuits
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chemical synaptic transmission
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chemical synthesis of natural active compound
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