| |||
cleans | |||
concentrate | |||
cleaned coal | |||
head coal | |||
concentrates; float coal; washed coal | |||
| |||
cleaned coal |
精煤: 33 phrases in 11 subjects |
Agriculture | 1 |
Business | 1 |
Chemistry | 1 |
Electronics | 1 |
Environment | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 4 |
Geology | 1 |
Metallurgy | 7 |
Oil / petroleum | 2 |
Technology | 13 |