| 单词 |
air survey |
| 释义 |
air survey air survey[¦er ¦sər‚vā] (engineering) aerial survey air surveyA survey conducted from the air for mapping, geological, and other purposes. Aircraft carry a variety of instruments for survey work in addition to cameras. The main task in carrying out cartographic surveys is taking vertical photographs. Satellites are taking over this task more and more from the aircraft. |
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