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| active substances | |||
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| agent; substance | |||
| active ingredient; active principle; active substance | |||
| active constituent | |||
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sustancias activas : 15 a las frases, 7 temas |
| Agricultura | 1 |
| Ambiente | 1 |
| Ciencias de la vida | 1 |
| Cuidado de la salud | 1 |
| Farmacia y farmacología | 9 |
| Medicina | 1 |
| Química | 1 |