单词：population parameter
population parameter的用法和样例：
例句
- The elephant population in that area is falling.那个地区的大象总数在下降。
- The birth rate is the number of births compared to the size of the population.出牛率是出生人数与人口总数之比。
- An effective iterative algorithm for computing the closest dynamic oscillatory stability margin in full parameter space was proposed.提出了全参数空间下的最近动态电压振荡型失稳边界的计算方法。
- China's population continues to grow,the proportion of the aged is getting larger,and the pressure on employment and social security is mounting.人口总量继续增加，老龄人口比重上升，就业和社会保障压力增大。
- The Chinese population time series models have been formulated, but the Shaanxi population time series model has not been researched into.对全国人口总量时间序列模型，已进行了一定的研究，对陕西省人口总量时间序列模型尚未研究。
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