以下为句子列表：
英文: Hot-air furnace is the heat-source equipment for supplying clean-air to dry grain.
中文: 摘要热风炉是为粮食烘干提供洁净空气的热源设备。
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英文: Ten years production practice of self-preheating hot air Furnace system at Ansteel were summarized and based on this technology, it was succeed that self-preheating hot air Furnace system of No.7BF was established, self-preheating hot air Furnace technolo
中文: 摘要总结了10年来鞍钢热风炉自身预热系统的生产实践，并在此基础上建成了7(上标#)高炉热风炉自身预热系统，使热风炉自身预热技术得以发展。
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