1) рекогносцировка
2) разведка
3) рекогносцировочная съёмка; рекогносцировочные исследования
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- aeromagnetic reconnaissance
- electronic reconnaissance
- geological reconnaissance
- geologic reconnaissance
- geophysical reconnaissance
- gravity reconnaissance
- ground reconnaissance
- magnetic reconnaissance
- oil reconnaissance
- radar reconnaissance
- radio reconnaissance
- regional reconnaissance
- seismic reconnaissance
- water reconnaissance