炉底，汉语词语，出自明 李时珍《本草纲目·金石一·密陀僧》，释义为冶炼银铅的一种脚料。
n. hearth
misc. furnace bottom ; furnace hearth ; furnace floor
它有圆墙，其目的是阳光直接进入炉底。
It has rounded walls that aim the sunlight directly into bottom of the oven.
高炉炉缸炉底的寿命是高炉本体寿命的限制性环节。
The lifetime of blast furnace hearth and bottom is the restricted link of blast furnace life.
真正的光源是炉底的火，小小的炉灶上涂着黄色绿色的釉彩。
The real light comes from the fire, at the bottom of a small stove adorned with yellow and green enamel.
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