Multiple paint Layers. Popular blending modes. Layer groups.

多个油漆层。流行的混合模式。层组。

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Hold down Cmd + Opt + click on the triangle icon will collapse or expand all level layer groups.

按下Cmd和Opt键的同时击这个三角形符号，可以折叠或展开所有层级的群组文件夹。

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Based upon the growth layer groups in cementum and dentine of the tooth, the age of the huge Sperm Whale was estimated at 29 years.

根据对牙齿磨片牙骨质和牙齿齿质上的生长层组判断，其年龄约为2 9龄。

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You have to add to this layer upon layer of professional interest groups having their say.

BBC: Health Bill: Where's the strategic argument?

In essence, Patch has added a social layer on top of its 800-plus community websites, allowing users to form groups and consume content via interest-specific feeds.

FORBES: Patch's Redesign: An Evolution, Not A Pivot