名词
中文翻译：Unknown
同义词：
['U-type furnace', 'U-shaped furnace']
例句：
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1.The U-flame furnace is a popular choice for heating homes in cold weather.
U型火焰炉是寒冷天气中家庭取暖的热门选择。
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2. The engineer designed the U-flame furnace to improve energy efficiency.
这位工程师设计了U型火焰炉，以提高能源效率。
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3. The U-flame furnace is used to melt metals and alloys.
U型火焰炉用于熔化金属和合金。