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| chemical abundance; abundance of an element | |||
| содержание элемента: 26 phrases in 15 subjects |
| Aviation medicine | 1 |
| Construction | 2 |
| Forestry | 1 |
| General | 1 |
| Geology | 1 |
| Gold mining | 4 |
| Hydrology | 1 |
| Linguistics | 1 |
| Makarov | 1 |
| Nautical | 1 |
| Navigation | 7 |
| Oceanography & oceanology | 1 |
| Psychology | 2 |
| Refrigeration | 1 |
| Technology | 1 |