| 1. | Her sea experience covers hydrographic survey operations, fisheries research, and oceanographic research.
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| 2. | In practice, hydrographic survey vessels are often equipped to perform multiple roles.
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| 3. | It was surveyed by the British Naval Hydrographic Survey Unit in 1956-1957.
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| 4. | She also participated extensively in the hydrographic surveys made of the islands.
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| 5. | They were recharted by a Royal Navy Hydrographic Survey Unit in 1963.
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| 6. | First charted by the Royal Navy Hydrographic Survey Unit in 1963.
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| 7. | In general, army officers worked on hydrographic surveys in coastal waters.
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| 8. | Naval hydrographic survey vessels often do naval research, for example, on submarine detection.
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| 9. | He participated in several hydrographic surveys and became skilled in cartography.
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| 10. | Merz was planning a systematic hydrographic survey of the Atlantic Ocean.
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