沙漠干旱少雨,因此水贵如油。德国布莱梅大学的科学家吕比格教授新近发明了一套利用沙漠昼夜温差从空气中取水的位置。沙漠中白天空气干燥,空气湿度只有20%到30%。但到了夜里,由于巨大温差的作用,沙漠中的空气湿度可以增加到70%～80%。根据这一原理,吕比格教授研制出了一套从空 The desert is arid and rainy, so the water is expensive. Professor Rübge, a scientist at Bremen University in Germany, has recently invented a place to use the temperature difference between the day and night in the desert to take water from the air. The air in the desert is dry during the day and the air humidity is only 20% to 30%. But at night, due to the huge temperature difference, the humidity in the desert can increase to 70% to 80%. According to this principle, Professor Lubigg developed a set of