名词
中文翻译：熔炼费用
同义词：
['melting charge', 'furnace charge例句：1. The cost of the smelting charge is included in the final bill.（熔炼费用的费用包含在最终账单中。）']
例句：
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1. The cost of the smelting charge is included in the final bill.
熔炼费用的费用包含在最终账单中。
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2.The company has to pay a high smelting charge for the raw materials.
公司必须为原材料支付高额的熔炼费用。
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3. The smelting process requires careful monitoring to ensure efficiency and safety.
熔炼过程需要仔细监控，以确保效率和安全。