这里向读者介绍一种利用太阳能取暖的设备。制作太阳能暖气设备的只是一些极其普通的材料,只要有50来个空罐头盒、一只马粪纸板箱子、一块聚乙烯塑料薄膜和一些硬纸板就够了。这种暖气设备的做法十分简单。先是把空罐头盒外面涂黑。用市售的黑漆涂刷太不经济,可以到化工商店 The reader is introduced here to a device that uses solar energy for heating. Solar energy heating equipment is only a few very common materials, as long as there are 50 empty cans box, a horse dung cardboard box, a polyethylene plastic film and some cardboard is enough. This kind of heating device is very simple. The first thing is to paint the outside of the canned box black. It is not economical to paint with commercially available black paint. You can go to the chemical store.