Isbn: 9787806417539 - 农村小康与沼气建设 (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback Pages Number: 186 in Publisher: Central Plains farmers Press; 1st edition (July 1. 2006). Biogas development is an effective way of scientific use of biological resources. Entering the new century. the construction of biogas as an infrastructure of rural areas. as the technology matures. efficiency has continued to increase. increasing the role. breaking the traditional areas of fuel. and change ring. lavatories. change the kitchen to change the sources in combinati.…