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- plants 2
- Plasma 1
- plaster disposal 1
- Plastics 1
- plastics 1
- Platinum 1
- Platinum complexes 3
- platinum complexes 1
- plotonium 1
- Plutonium 2
- plutonium 1
- plutonium dioxide 1
- Poços de Caldas 2
- point defects 2
- polarization 1
- polarografia 1
- polarography 1
- Pollution 1
- pollution 4
- Polymer-base 1