英语翻译流畅最重要,不要翻译器的,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.Refrigerator

英语翻译流畅最重要,不要翻译器的,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.Refrigerator
英语翻译
流畅最重要,不要翻译器的,
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 creates a drop
in temperature of several degrees.This cools the inner pot and helps keep food
safe from harmful bacteria.

英语翻译流畅最重要,不要翻译器的,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.Refrigerator
在食物储存方面,温度上几度的变化就会产生很大的不同.如果温度上升,食物就会变质.但是对于世界上许多的穷人来说,找到保持食物凉爽的方法很困难,冰箱价格昂贵且耗费电力.然而,变质食品不仅会产生健康危害而且会造成经济损失,当农民将无法迅速售出的农产品扔掉时,他们会损失不少钱.但在1995年,尼日利亚北部的一位名叫穆罕默德 巴 阿巴的教师发现了一个解决办法：他开发了一种”盆套盆存储冷却系统“——用两只圆形陶制容器,较小的一只放在较大的那只里面,两只容器之间填满湿沙.里面的那只盆可用来保存水果、蔬菜或者饮料.用一块湿布将整个冷却系统覆盖,存储在里面较小的盆中的食物可通过简单的蒸发冷却防止变质.两个盆之间的湿沙中的水通过较大盆的表面蒸发,而外面的干燥空气也通过此处流动,蒸发过程会使温度降低几度.这样,里面的盆就会被冷却并有助于保持食物远离有害细菌.