Biogas is a clean-burning fuel. It does not give off smoke as does charcoal or firewood. By using biogas for cooking you can keep your cooking area and your food cleaner. This publication tell how to make and use biogas.
出版物详细信息
- 出版者: FAO (Food and agriculture org. of the U.N.
- ISBN-10: 9251012903
- ISBN-13: 978-9251012901
- Dewey Decimal: 338.927
- ECHO 图书馆: 338.927 FAO