Special tugs now usher tankers in and out of Valdez to the open sea.

现在，进出瓦尔迪兹港的油轮由特别的拖船引导。

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The key problem facing Shanghai Port is that the water depth in the waterways to the open sea is not enough to facilitate large vessels' entering and leaving the port.

目前上海港面临的主要问题是通海航道水深不能满足大型船舶进出港需要，上海深水港建设的紧迫性日益突出。

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Cousteau usually filmed large animals, usually in the open sea, whereas Painlevé generally filmed smaller animals, and he liked to film in shallow water.

库斯托通常是在开阔的海面上拍摄大型动物，而佩恩利夫往往拍摄较小的动物，他喜欢在浅水里拍摄。

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When people began sailing out of sight of land, sailors did not know how to tell where they were on the open sea.

VOA: special.2010.07.14

But sailors need more information to sail safely on the open sea.

VOA: special.2010.07.14

Lifeguard supervisor Ben Mitchell added: 'The RNLI exists to operate a seamless rescue service from the beach to the open sea.

BBC: Ducks crossing

This fact-filled Guide explores the ocean from the coastal zones to the frozen poles, the deep sea to the open ocean.

UNESCO: Associated Schools Programme (ASPNet)

Yet the greatest thrill to be had on the Amalfi Coast is to head out for the open sea.

BBC: Live the good life on the Amalfi Coast