turncap
名词 n.
英文释义
名词 n.
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A sort of chimney cap which turns round with the wind so as to present its opening to the leeward.
— a building furnished with cowls, or turncaps, with their vanes so arranged, that, while one shall receive the full force of the wind, the other may allow it to escape freely
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数据来源: Wiktionary