Colliders do their best to match the scale of an object. If you have a non-uniform scale (a scale which is different in each direction), only the Mesh Collider can match completely.

碰撞器尽量匹配对象的比例。如果有一组不规则伸缩(每一维度上的比例都不相同)，只能使用网格碰撞器才能完全匹配。

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The results indicate that this method not only can match completely group velocities among three waves, but also can achieve maximal parametric bandwidth for continuous tunable femtosecond BBO OPA.

结果表明，利用该方法不仅能够完全补偿飞秒BBO光参量放大在连续调谐时三波的群速失配，而且能够实现最大的参量带宽。

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Everything has to completely match.

所有分量必须完全相同

耶鲁公开课 - 基础物理课程节选

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