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| source | |
| comp., MS | allikas; lähe |
| environ. | emissiooniallikas; heiteallikas; õhkuheiteallikas |
|
virtual : 41 phrases in 10 subjects |
| Communications | 1 |
| Economics | 3 |
| Education | 5 |
| Environment | 1 |
| General | 1 |
| Information technology | 8 |
| Mathematics | 1 |
| Microsoft | 19 |
| Technology | 1 |
| Transport | 1 |