二是标题有时可以超越语篇宏观结构产生指向篇章外概念实体的参照点效应。
For another thing, at times a discourse title may contain a cognitive reference point that provides access to a target conceptual domain beyond the discourse.
当数个实体记录必须要包含某个特定变项，而这个变项并非定值的时候，就会使用标题记录。
Header records are often used when the number of physical records needed to contain the data for a particular variable is not constant for all variables.
问：我们的标题实在是关于建筑空间和建筑实体结构以及能量之间的关系。
Ask: Our question was actually related to the role played by the structure and energy.
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