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- activated carbon 1
- activation 1
- activation of growth processes 2
- active acidity 1
- active and interactive processes 1
- active and passive management 1
- active components 1
- active countermeasures 1
- active euthanasia 2
- active ingredient 1
- active learning 1
- active leisure time 3
- active loads on the roof 1
- active methods 2
- active operations 2
- active oxygen 1
- active participant of foreign trade 1
- active secondary metabolites 1
- active substance 1
- active teaching methods 1