This article proposes that metaphor and metonymy should be considered as "activation of target domain by source domain" rather than "mapping or projection".

本文认为无论隐喻、转喻，不宜认为“是一个认知域映射另一个认知域”的问题，而宜假设为“一个认知域激活另一个认知域”。

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Recognizing the above characteristics will guide us to perform right atrial activation and entrainment mapping on purpose, and then identify rapidly the typical atrial flutter.

认识上述特点，有助于引导我们有目的地进行右房激动标测和拖带标测，从而可以快速识别出典型房扑。

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