Of necessity they are sited near the coasts or tidal water .

出于需要，它们都坐落在靠近海岸或潮汐水域附近。

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The model is used to predict the tidal water level of Dahengqin station.

并利用该模型对珠江口磨刀门水道的大横琴站的潮位进行预报。

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Spring and fall, tidal water level is low, are a good crab catching season.

春天和秋天，潮水的水位很低，都是捉螃蟹的好季节。

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Never mind that her route lay across more than six kilometres of choppy tidal water and Ms Sherr had not swum more than a kilometre in decades.

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The Boat Race is unique because it takes place over a course that not only twists and turns - unlike the 2, 000m Olympic course - but does so on tidal water, where the pace of the stream varies, and conditions are never the same from one day to the next.

BBC: SPORT | Other Sport | Boat Race 2003 | Little things count

The Spirit of Breydon, designed for the open water and tidal conditions of Breydon Water near Great Yarmouth, can also be used 60 miles (97km) off shore.

BBC: Breydon Water: Broads Authority launches new patrol boat