One leading idea is that gravitational tidal forces reshaped the moon's crust and made it lopsided. But the new theory builds on the "giant impact" model that explains the moon's creation.

一种主流看法认为是重力潮汐作用改变了月球的外壳，并使其向一侧倾斜，但该新理论是以解释月球成因的“大碰撞”模型为基础的。

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Mines are the important resource and environment for human being. Author discussed the prediction of mine disasters by macro precursors, image force theory and the effect of tidal force.

矿井是人类的重要资源和环境。从矿井内的宏观前兆、象力理论和引潮力的影响讨论了矿井灾害的预测问题。

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The shallow water wave theory is employed in the description of tidal flows.

潮流场计算是基于浅水波理论。

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