If it is in or near Mint Condition then note it as well. 如果是在当时的条件下或附近造币说明那样好。
Solar refrigeration is a sort of new solar using technology developing near several years. The solar refrigeration can effectively reduce mint consume of energy sources owing to general equipment of refrigeration, and it can alleviate the environment pollution due to burning the fossil energy sources. 太阳能制冷是近几年发展起来的一种新型太阳能利用技术,利用太阳能进行制冷可以有效降低常规制冷方法而带来的巨额能源消耗,并减轻由于燃烧化石能源发电所带来的环境污染。