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1.The electric furnace is used for melting metals.
电炉用于熔化金属。
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2. The electric furnace is an essential tool in the manufacturing industry.
电炉是制造业中必不可少的工具。
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3. The electric furnace helps to improve the quality of the products being produced.
电炉有助于提高正在生产的产品的质量。