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| field experiment; field trial | |||
| field experiment Experiment carried out on a substance or on an organism in the open air as opposed to in a laboratory | |||
| field test | |||
| in-service survey | |||
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veldproef : 2 a las frases, 2 temas |
| Ciencias fisicas | 1 |
| Cuidado de la salud | 1 |