热带和温带的干旱地区

exemption of enterprises established in free zones arid temperate proceed in the light of local conditions and in accordance with a rational division of labor, with all the regions exploiting their own parricular advantages for mutual benefit and development tropical breed in and in in-and-in biothermal zones similar regions arid erosion nether regions arid region subhumid and temperate zones to exist in both tropical and subtropical zones arid zones the forested in the humid temperate zones temperate forest steppe zones temperate forest zones crops of tropical regions tropical desert zones tropical forest zones Memoranda on Military Disease in Tropical and Subtropical Areas temperate and cold scrub