基本解释甸区域英汉例句双语例句Choropleth maps: Mapping data collected in enumeration units, such as country, province and district, by shading them according to a variable or attribute.面量图：根据该空间单位的数值涂上不同颜色，地图数据多由国家、省份或地区等单位收集得来的。enumeration district更多例句词组短语短语census enumeration district 人口普查计数区域enumeration district更多词组专业释义生物学甸区域