 |
| |||
| cementation oven; carburizing furnace; casehardening furnace; cementing-furnace; converting furnace; furnace for making iron | |||
|
four de cementation : 2 短语, 1 学科 |
| 冶金 | 2 |
|
| |||
| cementation oven; carburizing furnace; casehardening furnace; cementing-furnace; converting furnace; furnace for making iron | |||
|
four de cementation : 2 短语, 1 学科 |
| 冶金 | 2 |