ground survey meaning in Hindi

Examples

1. Mapped by USGS from ground surveys and USN air photos, 1959 65.
2. In the 1970s, many new deposits were discovered by aerial and ground surveys.
3. Bulgarian mapping from a ground survey accomplished during the austral summer of 1995-96.
4. The speed and precision of the system was far superior to traditional ground surveys.
5. This used satellite imagery, with ground survey used for checking.
6. First mapped from ground surveys and air photos by the Byrd Antarctic Expedition, 1928-30.
7. Four areas were excavated based on the ground survey and traces of a basalt wall.
8. Aerial photography, another mapping option, would cost five times that, ground survey crews even more.
9. Mapped by USGS from ground surveys and U . S . Navy air photos, 1959-66.
10. Readjustments must be made from careful ground surveys.