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| usage (The number of units or dollars of an inventory item consumed over a period of time) | |||
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kasutus : 18 do fraz, 8 tematyki |
| Chemia | 3 |
| Ekonomia | 5 |
| Farmacja i farmakologia | 2 |
| Finanse | 1 |
| Leśnictwo | 1 |
| Microsoftu | 4 |
| Ochrona środowiska | 1 |
| Technologia informacyjna | 1 |