The ability to divert water into small agricultural plots meant that the Hohokam could live in large agricultural communities of relatively high population density.
将水引到小块农业用地的能力意味着霍霍坎人可以以相对高密度人口进行大规模的农业生活。
2
The density of population is big, the industrial agricultural and commercial sectors are highly developed, and the fuel demand is great in Zhujiang delta area.
珠江三角洲地区是我国人口密度很大、工农业和商业高度发达的地区，对燃料的需求量很大。
3
Now more people become to pay attention to converting agricultural and forestry wastes into briquettes with certain shape and density by mechanical pressing.