“GRS1980 ellipsoid”的概念、定义、翻译、参考文献-科学参考

单词	GRS1980 ellipsoid
释义	GRS1980 ellipsoid Encyclopedia 工学参考椭球释 GRS1980 ellipsoid1980大地测量参考椭球 1980年西安大地坐标系统采用的地球参考椭球。
随便看	direct current Josephson effect direct current motor direct current motor, DC motor direct current plasma direct current plasma source direct current plasma source (DCP) direct current polarography direct current power supply direct current prospecting instrument direct current sputtering direct current tachogenerator direct current transmission direct-current transmitting methods of working face direct current vohage gradient direct current，DC direct cutter direct cutting direct decomposition direct defense direct democracy and indirect democracy direct derivation direct design method direct-detection optical receiver direct detector direct development

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