Densifying biomass has been practiced in the US for the past 40 years.
生物质密实一直实行美国在过去40年。
2
The school is set on a small triangular plot of land, in keeping with the urban policy for densifying a new residential area.
学校建筑坐落在一片呈小三角形的土地上，响应了城市加强开发新居住区域的政策。
3
In 2006, in the national support plan, "Agriculture and Forestry Biomass project", the solid biofuels densifying technology equipment and demonstration project was established.