open hearth process 平炉炼钢法

acid open-hearth process [冶] 酸性平炉法

basic open hearth process 碱性平炉炼钢法 ; [冶] 碱性平炉法

Siemens open hearth process 平炉炼钢法

open-hearth process 平炉炼钢法

basic open-hearth furnace process 碱式平炉法

rotary hearth furnace process 转底炉工艺

open-hearth furnace process 平炉炼钢法