选择和限制标记采用限制和控制骨骼变形的网格。

Selection and restriction tags are employed to limit and control how the bones deform the mesh.

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一些限制在于每个文档的不同标记限制为 253 个，并且不处理属性和处理指令。

Some limitations are that each document is limited to 253 distinct tags, and that attributes and processing instructions are not handled.

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出于本文所讨论范围的限制，我们将忽略模型持久性和标记。

For the scope of this article, we will be ignoring model persistence and markers.

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