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1. The electric resistance furnace is used to melt metals.
电抗炉用于熔化金属。
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2. The electric resistance furnace is essential for the production of high-quality steel.
电抗炉对于生产高质量钢材至关重要。
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3. The electric resistance furnace is a powerful tool for metal processing.
电抗炉是金属加工的强大工具。