population forecast的用法和樣例：
例句
- Demographers are perhaps best known for making population projections.
人口學(xué)家或許在人口預測上最為知名。 - Cohort-component method is widely used in actual population forecasts, which is base on population component and demology principle.
在現實(shí)的人口預測中，根據人口本身變動(dòng)要素和人口學(xué)原理的隊列要素法應用比較廣泛，效果良好。
