Palarization effect can be use to study of process of ion-metal surface collision, et al.

可以用于离子束流与金属表面碰撞过程的研究等。

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The quake happened along a seam in the planet's surface where the Pacific Ocean floor is diving beneath the tectonic plate carrying northern Japan (see 'Collision zone').

这次地震是沿着地球表面的一条缝隙发生的。 在这条缝隙处，太平洋板块正俯冲入另一地壳板块下部，而这块地壳板块正承载着日本的北部地区（见”碰撞带“）。

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Moreover, such a huge collision on the far side would have shifted much of the magma ocean that then underlay the moon's surface to the near side, which led to the formation of the maria.

再者，月球远端如此强烈的撞击可能会迫使位于月球表面下的岩浆海流向近端，结果形成了平滑的正面。

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The severity of the laboratory test was equivalent to an oblique collision with the rocky surface of the Earth - a comet coming in at an angle of less than 25 degrees from the horizon, rather than head on (perpendicular to the Earth's surface).

BBC: Comets could have seeded life on Earth