Geocenter motion is the relative displacement from the center of mass of Earth to the origin of the Terrestrial Reference Frame.
地球质心(简称地心)是指包括海洋大气等的整个地球的质量中心，地心运动是地球质量中心相对于地球参考框架原点的位移。
Meanwhile, it presents frame construction of Marine reference materials as well as relative Suggestions and countermeasures.
同时提出了海洋标准物质体系的框架结构和相关建议与对策。
Meanwhile, it presents frame construction of Marine reference materials as well as relative Suggestions and countermeasures.
同时提出了海洋标准物质体系的框架结构和相关建议与对策。
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