2015考研英语阅读防洪减灾_大学英语阅读

　　The traditional approach is to throw bags filled with sand or rocks into a breach.

　　一旦堤坝出现裂口，传统的做法是向缺口抛掷沙袋和石块。

　　Such bags, though, are heavy and unwieldyparticularly if they have to be filled far fromthe breach and then carried there.

　　然而这些沙袋死沉，难以搬运。如果不得不在离裂口较远的地方灌装沙袋再运过去的话，这项工作就难上加难。

　　William Laska of the Science and Technology Directorate at America s Department ofHomeland Security has therefore sought out alternatives.

　　威廉拉斯卡在美国国土安全部所属的工程科技处工作，

　　He has found several technologies that have a common theme:

　　他找到了解决这一难题的办法。

　　they all use water itself to help stem the flood.

　　这些方案有一个共同点：以水御水。

　　The largest of the new devices is designed to block deep breaches.

　　这些新发明的装置中体积最大是设计用来堵塞宽深堤坝裂口的。

　　The Portable Lightweight Ubiquitous Gasket is a sausage-shaped balloon made of polyesterand PVC, and fitted with motorised pumps.

　　这种装置叫做便携式通用轻型堵漏包。它是由聚酯纤维和聚氯乙烯制作的圆柱形气球，并安装了发动机带动的水泵。

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