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| recirculating scrap; return scrap (【技】返回废钢：钢铁企业的自产废钢，由生产回收废钢和非生产回收废钢组成。生产回收废钢主要来自冶炼过程和轧钢过程；非生产回收废钢包括报废的钢锭模、轧辊以及其他报废的冶金设备和部件等。) | |||
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返 回废料 : 2 phrases in 1 subject |
| Metallurgy | 2 |
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