Louisiana officials want to start building sand berms as barrier islands, to block oil from entering the fragile marsh ecosystems;

路易斯安那州官员希望开始建造作为屏障的沙堤来阻止石油侵入脆弱的沼泽生态系统；

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In Louisiana, temporary sand berms are being built to protect barrier islands.

在路易斯安那州，人们已经用沙袋搭建起临时堤坝，来保护沿岸的岛屿。

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The sand ground temperature is higher obviously than clay straw barrier ground and the leaf surface of natural desert plants under the same conditions of sunlight, time and the area.

在同一地区约同一时间相同的日照下，沙面温度明显高于粘土、麦草沙障表面和沙生植物叶面温度。

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The Moroccans used them in the fighting and have now deployed them as their main weapon alongside the 900-mile sand wall, the "Berm" - that they constructed as a barrier between Western Sahara and the Saharawi camps in Algeria.

BBC: News Online

For the remaining decade he and some hired engineers improved the aqua- barrier design, adding new products like protective sand-filled barrels and the first collapsible crash-cushions.

FORBES: Crash course

Yet the country is still a popular stopover for cruises, and, being that it is home to the world's second longest barrier reef, impressive eco-tourism attractions and relaxing white-sand beaches, tourism is still one of its top sources of revenue.

BBC: Central America��s shift in safety