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1. Hydrographic surveys and nautical charts follow the standards set by the IHO.

2. Bathymetric maps from 1958 to 2005 and hydrographic and sediment data are used to analyze the form and revolution of Ruifengsha Spit.

3. It is valuable to be popularized to the hydrographic surveys such as the measurement of the distance from initial point and the large cross-section survey etc.

4. William Parry). Through him the Hydrographic Office developed a far more scientific character than it had under Thomas Hurd.

5. Natural distribution had close re1ation with hydrographic net, elevation, soil, mother rock, vegetation and slope orientation.

6. Introduced and analysed the hydrographic condition in Anyang, and gave some measures and suggestions on hydrographic forecast, hydrography and water resources.

7. And Shanxi's hydrographic water resources informatization construction faces many chances and challenges.

8. With the establishment of the Hydrographic Office the British Navy had its own map department, engravers, and printing facilities.

9. Seismo-oriented hydrographic and geochemical observation projects and testing instruments, etc.

10. Hydrographic survey has been continuously developing with human civilization activities extending towards the sea.

11. The Hydrographic Office carries out hydrographic surveys and produces bilingual nautical charts.

12. S410 Deepwater hydrographic and broadband echosounder has an enhanced hydrographic echosounder that supports single channel operation, and has a high ping rate of 20Hz at 15m.

13. Hydrographic and bathymetric data have been applied to review the dynamic regime and morphological evolution in recent years in the sandbar area of the Modaomen estuary.

14. Adopting hydrographic cableways to measure hydrological data is an effective way in traditional hydrograph.

15. A ship could nevertheless be navigated accurately,(http://sentencedict.com/hydrographic.html) especially when up-to-date hydrographic data was available from offshore surveys by submarines.

16. The existence of this branch is of prime significance for the South China Sea hydrographic structure, water self-purification and air-sea heat transfer.

17. From the orthogonality principle in liner mean square estimation of stochastic processes, the sea factor obtained at a project site can be estimated by that at some routine hydrographic station.

18. Back in 1795 the increased need for reliable charts during the French Revolution led to the development of the Hydrographic Office of the Admiralty.

19. John Barrow, Second Secretary of the Admiralty, selected Capt. Francis Beaufort to head the Hydrographic Office (he replaced Capt.

20. Charting more areas would ensure the safety of cruise ships, sealift vessels and local traffic, said Savi Narayanan, director general of the hydrographic service.

21. According to the monitoring data from 2001 to 2006 of every hydrometric station along Xiaoqing River, we proposed the empirical formula between flow rate and other hydrographic parameters.

22. Sutong Bridge lies in the bad geological and complicated hydrographic conditions, which is hard to be constructed.

23. The trends of water flow and sediment changes at three hydrographic stations (Pingshan, Beibei and Yichang) in recent 50 years are analysed.

24. Based on the spectrum of Mean Sea Level (MSL) and the relation model between two tidal stations, the mathematical model for hydrographic datum transfer are studied.

25. This model can not only solve computational problem of hydrographic net, but also can solve computational problem of long watercourse and complex flow in natural river.

26. The precise situ calibration and error analysis are fateful to insure the quality of hydrographic measurement.

27. Home state spent in 1913 set up Road, Yutian County chun an Chihli hydrographic province.

28. Geological disasters are frequent in Heilongjiang province due to its complex geological, physiognomic and hydrographic conditions.

29. Sea Bat 7125-E - High resolution multi beam sonar, the S410 Deepwater hydrographic and broadband echosounder, and the PDS2000 Software package.