The basic concepts and principles derived on this base can be used directly to optimized design of hovercraft resistance, stability and sea keeping quality.

由此导出的一些基本概念和判据可直接应用于气垫船阻力、稳性和耐波性的优化设计。

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Wednesday, winds over the Fukushima nuclear-power plant gusted out to sea, keeping levels close to normal.

周三，经过福岛核电站的风吹向了大海，核辐射强度接近正常水平。

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A study published in the December 2009 Ecological Applications shows that keeping more fish in the sea may give an ecosystem some protection against unwanted algae.

在2009年12月号生态学应用杂志上发表的一项研究显示海中鱼类增多可保护生态系统不受讨厌的海藻污染。

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Arctic sea ice is important because it throws sunlight back into space, keeping the sea cold.

VOA: special.2009.05.05

Of particular importance for Japan is keeping sea lanes open and protecting international commerce.

FORBES: It's Time To End Japan's Defense Dependence On The United States

Most passengers languish on deck as the Tucker T cuts through the sheltered sea of the Bay, keeping their eyes peeled for the dolphins and penguins that occasionally surface alongside like bobbing corks.

BBC: All at sea in New Zealand

The region has the highest water bills in the UK, partly because of the cost of keeping the coastal region's sea water clean.

BBC: Water customers have not been given a rebate since 1998