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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 phrases in 7 subjects |
| Agriculture | 1 |
| Chemistry | 1 |
| Environment | 1 |
| Health care | 1 |
| Life sciences | 1 |
| Medical | 1 |
| Pharmacy and pharmacology | 9 |