Thinning scissors are used by hair dressers and have serrated cutting edges so that hair is cut at different lengths. This way it doesn't all "bunch up" together.

细化剪刀是美发师的常用工具，它的刀刃是锯齿状的，所以可以将头发剪出不同的长度从而使它们不会堆在一起。

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Blades have four cutting edges that are serrated, same as having 3 spare blades.

刀片为四个锯齿状刀刃，与备用的3个刀片相同。

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He was close enough to see the serrated edges on every three-inch tooth.

ECONOMIST: Frank Mundus

To the west are the saw-edges of glacier-encrusted rock and ice, serrated by more than 30 jagged peaks heavy with snow, the highest of which is 6, 768m-high Huascaran, the tallest mountain in the tropics.

BBC: Trekking Peru��s Santa Cruz trail