单词 | open-hearth |
释义 | o·pen-hearth (ōpən-härth) adj. open-hearth1. Relating to or being a reverberatory furnace used in the production of high-quality steel. 2. Of or relating to the use of an open fireplace, especially for cooking. In an open-hearth furnace, pig iron is melted to produce steel. A. fuel and air enter B. molten pig iron C. exhaust gases exit |
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