单词：air cooling by evaporation
单词：air cooling by evaporation 相关文章
Technology Report - A Cool Way to Keep Food From Spoiling 科技报道 - 罐中罐食物保鲜系统 This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 A few degrees can make a big difference when it c
2011年VOA慢速英语(十一)月
This is the VOA Special English Development Report. 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. Re
VOA慢速英语2007年（十一）月
DEVELOPMENT REPORT – March 18, 2002: Pot-in-Pot Cooling Device By Jill Moss This is the VOA Special English Development Report. In many developing countries, it is difficult to keep food cool. Most
农业与发展
This is the VOA Special English Development Report. 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. Re
VOA慢速英语2009年（二）月
Argument 47 The nation of Claria covers a vast physical area. But despite wide geographic differences, many citizens are experiencing rising costs of electricity. A recent study of household electric costs in Claria found that families who cooled the
GRE英语
今天我们要讲的习惯用语都有air这个词。大家都知道air是空气。早在十七世纪，意大利科学家伽利略发现空气似乎没有实质却有重量。后来人们进一步发现高山顶上的空气要比海平面上的空气
美国习惯用语