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1·This thesis is devoted to the corpus-based study on Concessive Adverbial Clauses in Maritime Engineering English (MEE).

这篇论文旨在研究和分析让步状语从句在轮机英语（MEE）中的应用及其特点。

2·Concessive adverbial clause is used to express certain unfavorable circumstances or opposite conditions, which however, do not prevent the action in the main clause from happening.

让步状语从句表示某种不利的情况或相反的条件，但这些因素并不能阻止主句动作的发生。