预精炼 meaning in English
preliminary refining
prerefining
Examples
- Abstract : through optimizing the process , lc femn with [ c ] & lt ; 0 . 5 was batch processed on the basis of pre ? refining outside the furnace , and the economic index was ideal
文摘:在炉外预精炼的基础上，通过工艺过程的优化，批量生产出含碳小于0 . 5的低碳锰铁，并取得较为理想的经济指标。