flues的例句（flues在句子中的用法）
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Cut openings in sheets for outlets, vent pipes, flues, etc. to the minimum size necessary.
削减开口,为产品的店铺时, 排气管, 烟道等,以最小面积必要的.
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Remove sediment from heaters, flues and motors before using them.
在使用暖气, 烟道,和马达之前,应清理沉积物.
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Heat was obtained from decomposing manures and hot air flues.
靠肥料分解和烟道为植物提供热量.