火法精炼 | |
gen. | pyrorefining |
met. | fire refining; fire refining method; fire refining process; furnace refining; pyro-metallurgical refining; pyro-refining |
期 | |
econ. | issue |
火法精炼 : 15 phrases in 3 subjects |
Electric machinery | 1 |
Metallurgy | 13 |
Technology | 1 |