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Afewdegreescanmakeabigdifferencewhenitcomestofood(storage).Foodscangobadiftheygettoowarm.Butformanyoftheworld’spoor,findingagoodwaytokeepfoodcoolisdifficult.(Refrigerators)arecostlyandtheyneedelectricit

题目详情
A few degrees can make a big difference when it comes to food ( storage ).Foods can go bad if they get too warm.But for many of the world’s poor,finding a good way to keep food cool is difficult.( Refrigerators ) are costly and they need electricity.Yet spoiled food not only creates health risks but also economic losses.Farmers lose money when they have to throw away ( products ) that they cannot sell quickly.
But in 1995 a teacher in northern Nigeria named Mohammed Bah Abba found a ( solution ).He developed the “Pot-in-Pot Preservation/ Cooling System.” It uses two ( round ) containers made of clay.A smaller pot is placed inside a larger one.The ( space ) between the two pots is filled with wet sand.The ( inner ) pot can be filled with fruit ( vegetables ),or drinks.A ( wet ) cloth covers the whole cooling system.
Food stored in the smaller pot is kept from spoiling through a ( simple ) evaporation process.Water in the sand between the two pots evaporates through the surface of the larger pot,where drier outside air is moving.The evaporation process ( create ) a drop in temperature of several ( degrees ).This cools the inner pot and helps keep food safe from ( harmful ) bacteria.Some foods can be kept fresh this way for several weeks.
People ( throughout ) Nigeria began using the invention.And it became popular with farmers in other African ( countries ).Mohammed Bah Abba personally financed the first 5,000 pot-in pot systems for his own community and five villages nearby.
In 2000,the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise.This award recognizes people trying to develop ( projects ) aimed at improving human ( knowledge ) and well-being.
A committee considers projects in science and medicine,technology,exploration and discovery,the environment and ( cultural ) history.Winners receive financial assistance to help develop and extend their projects.The award is given every two years.The most ( reason ) one was given last year.
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答案和解析
一些度可以造成很大的差异对于食物(存储).食物会变坏,如果他们得太热了.但对于许多世界上的穷人,找到一个好办法,使食物保持凉爽是困难的.(冰箱)是昂贵的,他们需要用电.变坏的食品不仅对健康有害,而且经济损失.农民失去金钱,当他们不得不扔掉(产品),它们不能卖得很快.

但在1995年在尼日利亚北部的老师叫穆罕默德呸!找到(答案).他开发了“Pot-in-Pot保存/冷却系统”.它使用两种(轮)容器泥罐.一个小锅放在一个大一点的.(空间)的两个锅装满湿沙.(内部)锅可以充满水果(蔬菜),或饮料.一个(湿)布覆盖整个冷却系统.

食物储存在小锅是远离破坏通过蒸发过程(简单).水两个锅之间的表面蒸发通过大罐、烘干外面的空气是流动的.蒸发过程(创造)一个降温的几个(度).这使其内在的罐子,有助于保持食物远离(有害细菌.有些食物能保持新鲜这边好几周.

人们在尼日利亚开始使用该发明.它变得流行起来,与农民在其他非洲国家).穆罕默德呸!个人出资pot-in锅系统第5,000为自己社区和五城,还有属城的村庄附近.

2000年,瑞士劳力士手表公司向他致敬的劳力士奖的企业.这个奖项用于表彰人们试图发展(项目),旨在改善人类(知识)和福祉.

一个委员会认为,在科学和医学工程技术、探索与发现,环境和(文化)的历史.获胜者会得到财政援助来帮助他们的项目开发和推广.这个奖项是每两年颁发一次.最(原因)一个是去年.