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grass-root level | |||
background level Term used in a variety of situations, always as the constant or natural amount of a given substance, radiation, noise, etc. | |||
background level | |||
base-level | |||
base level of erosion |
nivel de base : 7 phrases in 6 subjects |
Communications | 1 |
Electronics | 1 |
General | 1 |
Name of organization | 1 |
Transport | 2 |
United Nations | 1 |