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| reinforcement; supplementing natural regeneration; accumulation | |||
| benefication; enrichment | |||
| to concentrate; enrich; upgrade | |||
| enriching | |||
| enrichment The process of increasing the abundance of a specified isotope in a mixture of isotopes. It is usually applied to an increase in the proportion of U-235, or the addition of Pu-239 to natural uranium for use in a nuclear reactor or weapon | |||
| fortification | |||
| environmental enrichment | |||
| clay enrichment | |||
| concentration; enrichement | |||
| arricchimento: 104 phrases in 30 subjects |