根据认知加工层次理论，对单个的词可进行形式和语义即浅层次和深层次加工；

According to the theory, there exist two levels of cognitive processing: the formal level or the surface level and the semantic level or the deep level.

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本文以认知加工层次理论为理论框架，对二语词汇伴随性学习的必要性和局限性进行了详尽的阐述。

This paper dwells on the necessity and limitations of incidental learning of L2 vocabulary based on the theory of depths of processing proposed by Craik and Lockhart.

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这样，在特征整合理论中，分散注意是相对低层次的加工，粗略地等同于自动加工。

So, in the feature integration theory, divided attention is relatively low levels of processing, roughly equivalent to the automatic processing.

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