population pyramid
英 [ˌpɒpjuˈleɪʃn ˈpɪrəmɪd]
美 [ˌpɑːpjuˈleɪʃn ˈpɪrəmɪd]
网络 人口金字塔; 分群金字塔形图; 金字塔图; 分群金字塔型图; 人口金字塔图
双语例句
- Costs of medical care pile up as the population pyramid becomes increasingly mushroom-like.
随着人口结构金字塔日益变成蘑菇型，医护费用不断上升。 - A population pyramid is a graphical illustration of the age distribution of a population.
人口金字塔是反映地区人口和年龄性别比例的图像，形状像金字塔。 - The number of people in each age group in the population pyramid [ chart to be shown] reveals something of the EU's history.
人口金字塔中各年龄段的人数揭示了欧盟的某些历史。 - The population was senile form, because its structure was inverse pyramid form, lacking seedlings and juvenile plants.
其种群结构为倒金字塔形，缺乏幼苗和幼树，为衰老型种群； - The population structure of P.massoniana was an inverse pyramid type, with no seedlings and only 4 saplings per hm 2, but 44 large trees per hm 2. The spatial distribution patterns of P.massoniana and C.
马尾松种群结构呈倒金字塔型，幼苗缺乏，幼树只有4株·hm-2，但大树较多，达44株·hm-2； - Though the population age structure was approximately pyramid-like, there were few young and middle-aged individuals, and the age structure of terrestrial subpopulation was reversed pyramid-like.
年龄结构虽然呈近似金字塔形，但幼龄及中等个体数少，呈一定的瓶颈现象，其陆生亚种群年龄结构呈倒金字塔形。 - On Application of Urban Population Pyramid in urban Planning
城市人口金字塔在城市规划中的应用