ground-based | observation
| observation | |
| gen. | iakttagelse; spaning |
| econ. | observation |
| environ. | ozonobservation; ozonsondering; sondering |
| English thesaurus | |||
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| gb | |||
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ground-based : 9 phrases in 5 subjects |
| Communications | 3 |
| General | 1 |
| Information technology | 1 |
| Life sciences | 3 |
| Radio | 1 |