名词
中文翻译：烟道拱形结构
同义词：
['flue', 'flue arches']
例句：
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1. The flue archesin the chimney are designed todirect smoke and heat away from the livingspace.
烟囱中的烟道拱形结构设计用来将烟雾和热量从生活空间中引导出去。
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2. The engineers weretasked with designing a new fluearch that would improve airflow efficiency.
工程师们被指派负责设计一个新的烟道拱形结构，以提高空气流通效率。
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3. The construction of this flue archwas completed ahead of schedule, saving timeand resources for future projects.
这个烟道拱形结构的建设提前完成，为未来的项目节省了时间和资源。