| |||
improductif | |||
ingrat | |||
stérile (о породе); inexploitable (IceMine) | |||
stérile | |||
improductif (о пласте); sec (о каменном угле) |
непродуктивный : 32 phrases in 9 subjects |
Construction | 1 |
Forestry | 2 |
General | 1 |
Geology | 14 |
International Monetary Fund | 2 |
Medical | 1 |
Mining | 1 |
Oil and gas technology | 9 |
Technology | 1 |