secondary refining
| technique
| secondary refining | |
| met. | 炉外精炼; 再精炼; 二次冶金; 钢包冶金; 二次炼钢 |
| technique | |
| exhib. | 技法 |
| gymn. | 手法; 操作法 |
| hydroel.st. | 技能; 工艺; 工程 |
| manag. | 方法论 |
| met. | 方法 |
| sport. | 技巧 |
| tech. | 技术 |
| |||
| ★ 二次精炼; 炉外精炼; 再精炼; 二次冶金; 钢包冶金; 二次炼钢 | |||
|
secondary refining : 14 phrases in 2 subjects |
| Metallurgy | 13 |
| Oil / petroleum | 1 |