侧碰撞传感器安装在中央立柱和侧碰撞传感器下面的后顶盖侧板上。
The side impact sensor is assembled in the centre pillar and quarter panel lower to monitor collision upon side impact.
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。
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.
碰撞过程会像挤牙膏一样把月表下的岩浆从碰撞点挤向另一侧。
Like squashing one end of a tube of toothpaste, the impact also pushes subsurface magma to the opposite side of the moon from the crash point.
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