This restriction is a significant limitation of ADB, but also confers some advantages.
这个限制是 ADB 的一大局限，但也带来了一些好处。
Another restriction is the limitation involved in result tree fragments when calling a named template from the content of xsl:variable. (See the earlier section, Implicit document nodes).
另一方面的局限与从 xsl:variable 内容中调用命名模板时的结果树片段有关（参阅上一节 隐含文档节点）。
Another challenge is the global outreach restriction due to geographical factors and limitation due to the current information technology infrastructure.
另一个挑战是全球推广的限制，是由于地理因素和目前的信息技术基础设施的限制。
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