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- Propagandizing the scientific theory of population. 宣传人口科学理论,
- This paper introduces a mathematical model for batch processes of crystallization according to the theory of population balance and uses Laplace transformation in its solution. 本研究根据粒数平衡理论;建立了间歇结晶过程的数学模型;并应用拉氏变换法将该偏微分方程简化为常微分方程求解;在此基础上发展了测定结晶动力学的动态测定法.
- Based on the theory of demology, the types of population age structure are divided according to the different proportions of elderly population and young population. 按人口学理论,人口年龄结构的类型是依据老年人口或未成年人口在人口中的不同比例来划分的。人口年龄结构类型分为年轻型、成年型和老年型。
- Einstein put forward his new theory of relativity. 爱因斯坦提出了相对论的新学说。
- This paper studies evolution problem of population and discusses its sustainable development goal by using the theory of dissipative structures and nonlinear stability criteria for nonlinear system. 运用耗散结构理论对人口系统的演化问题进行了研究,并用非线性系统的稳定判据得出了人口持续发展目标。
- Einstein's theory of relativity. 爱因斯坦的相对论。
- The density of population in this city is very high. 这个城市的人口密度非常高。
- Do you agree to the wave theory of light? 你同意光的波动理论吗?
- He cavalierly dismisses the theory of both Freud and Jung. 他傲慢武断地斥贬佛洛依德和杨格二人的理论。
- Darwin put forth the theory of evolution,. 达尔文提出了进化论。
- Malthusian theory of population growth 马尔萨斯人口增长理论
- Demography is the analysis of population variables. 人口学是对人口变量的分析。
- Malthusian Theory of Population; malthusianism 马尔萨斯人口论
- the theory of population explosion 人口爆炸论
- Ma Yinchu's theory of population 马寅初人口论
- Not everyone can understand Einstein's Theory of Relativity. 不是每个人都能读懂爱因斯坦的相对论的。
- Ma Yinchu rs theory of population 马寅初人口论
- Darwin spend more than twenty year work on his theory of evolution. 达尔文花了二十余年时间研究他的进化论。
- We now come to the question of population. 现在我们开始谈人口问题。
- He discoursed impressively on Newton's theory of gravity. 他讲述了牛顿的引力定律,给人以深刻的印象。