自由呼吸：設(shè)計爐灶的藝術(shù)
Hints:
Aprovecho
Cottage Grove
Oregon
Lorena
Dean Still
deforestation
Every year Aprovecho holds a "stove camp" at its testing station in Cottage Grove, Oregon. Engineers, inventors, students and others come together to design and test different methods and materials for improving stoves. Over the years, the group has made stoves using mud, bricks, sheet metal, clay, …
每年，阿布羅威奇(研究中心)在俄勒岡果園村的試驗站舉行“爐灶訓(xùn)練營”。工程師，發(fā)明家，學(xué)生和其他人都會集在一起設(shè)計并測試改善爐灶效率的不同方法和材料。 多年來，該組織已經(jīng)制造出了使用泥，磚，金屬片，粘土，陶器和劣化油桶的爐灶。大部分爐子看上去都像很大很深的烹飪罐。爐子的底部有一個開口，供火來燃燒，頂部的…