Differing from previous studies, the new method was derived from the idea of motion of moving trihedron along a predesigned path of contact on the predesigned (theoretical) tooth surface.

与以往的齿面加工方法不同，在新的齿面展成方法中，齿面展成运动是在沿预定接触迹线的曲面活动标架下设计的。

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Sadly, not yet but they can report on the path taken after the first point of contact.

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Police are also appealing to anyone who uses the path at the back of Tooting Bec Athletics Track to contact them if they have recently seen anything there which was out of the ordinary.

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The fact that contact information would be collected and stored was not explicitly mentioned in Path's terms of use or Twitter's privacy policy.

CNN: Doug Gross,