二次精炼 meaning in English
secondary refining
Examples
- Exhibits : stainless steel production ; steel - making equipment ; secondary metallurgy ; casting machine ; hot & cold rolling mill ; processing line
展品：不锈钢生产设备及工艺；炼钢设备及工艺；二次精炼；连铸设备及工艺；热轧及冷轧设备及工艺；处理线。