This paper introduces a method for calculating the contact point, contact normal and penetration depth in collision detection of irregular objects expressed by triangle mesh.

介绍了一种针对用三角形网面表示的不规则物体的碰撞检测中接触点，接触法线和刺穿深度的计算方法。

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Although men's touching is more normal in these cultures, physical contact between persons of opposite sexes who are not family members is negatively perceived in Arabian countries.

尽管男性的身体接触在这些文化中更为正常，但在阿拉伯国家，人们会抵触非家庭成员的异性之间的身体接触。

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What if the antimatter atoms they make come in contact with normal atoms?

假使他们制出的反物质原子与正常原子相接触将会发生些什么？

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"One of the principal concerns that men considering teaching feel is the worry that they will fall foul of rules which make normal contact between adults and children a legal minefield, " he said.

BBC: One in four primary schools still has no male teachers

And there is no known case, at least not known to me, of cancer being transferred from one human to another during normal physical contact.

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Ronaldsway airport is open as normal but passengers are being advised to contact their airline for updates.

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