In this fundamental work, curvature and the gravity field of the earth must be considered.
在这项基础工作中，地球的曲率和重力场都应被考虑。
Studies of the gravity field of the Earth indicate that its and yield when unusual weight is placed on them.
对地球引力的研究表明，在不寻常的负荷之下和会发生位移。
Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them. 40.
对地球引力的研究表明，在不寻常的负荷之下地壳和地幔会发对地球引力的研究表明，对地球引力的研究表明生位移。
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