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| closed crucible | |||
| closed cup (wikipedia.org dykov) | |||
| закрытый тигель: 26 phrases in 11 subjects |
| Chemistry | 3 |
| Ecology | 1 |
| Firefighting and fire-control systems | 4 |
| General | 4 |
| Laboratory equipment | 1 |
| Material safety data sheet | 1 |
| Oil / petroleum | 4 |
| Oil and gas technology | 1 |
| Production | 1 |
| Sakhalin | 2 |
| Technology | 4 |