population rate的例句大全

population rate equation analysis of controllability of fragmentation process in multiphoton ionization experiments of polyatomic molecules

多光子电离伴随的碎片化过程的速率方程分析

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the demand of long-term care facilities has increased as the population rate of elderly people increase yearly.

随著老年人口比例逐年提高，长者对安养机构的需求日增。

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The Error Estimate of Stable Population Rate of Increase and Birth Rate

稳定人口增长率和出生率公式的误差估计

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In 2003 our urban population rate was 39.1%, not merely far lag behind 80% of the average level of developed country but lower than the world by 50% of the average level too.

2002年我国人口城市化水平为39.1%，不仅远远落后于发达国家80%的平均水平，也低于世界47%的平均水平。

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comparative research on the higher educational population rate among the world most populous countries

世界人口大国高等教育人口比重的比较研究

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The prerequisite for u test of comparison of sample rate and population rate

样本率与总体率比较u检验的应用条件

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The birth cohort death study showed that the later the year of birth the higher the mortality rate was from ovarian cancer and the death rates of population born in about 1945 were the highest.

死亡队列研究发现，出生越晚，死亡率越高，其中1945年前后出生的人群死亡率最高。

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The results show that the proportion of the agriculture-related population, the possession rate of the fixed telephone and the childbirth rate in hospital are most significant factors remarkably impacting the infant mortality rate in China, while other factors only have impacts in some areas.

分析结果表明，只有农业人口占总人口的比例、固定电话拥有率和住院分娩率对中国各地区的婴儿死亡率均有显著影响，其他影响因素则只对部分地区的婴儿死亡率有显著影响。

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Results: The positive rates of Schick test in population was 14. 15% and the positive rate of children aged below 6, over 10 years old and adults aged 20~ 40 were ≤ 10%, ≥ 10% and ≥ 20% respectively.

结果：人群锡克氏试验阳性率14.15%，6岁以下儿童均在10%以下，10岁以上年龄组均在10%以上，20～40岁组在20%以上。

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First, this paper constructs a SIQS epidemic model that incorporates constant recruitment and a general population size dependent contact rate. A threshold parameter cis identified.

首先建立了一类具常恢复率，有效接触率依赖于总人数的SIQS传染病模型，并得到了阈值参数σ的表达式。

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The Optimal Control on the Noncompetitive Fertility Rate for the Time-dependent Population Developing System

时变人口发展系统非竞争人口生育率的最优控制

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We discuss the entire solution of the time-dependent population developing system equation. We regard the noncompetitive fertility rate as control function and judge its optimality by quadratic functional, and study the optimal control problems for the above population system.

讨论了时变人口发展系统的整体解，并且将非竞争人口生育率作为控制函数，用二次泛函来判别其最优性，研究了上述人口系统的控制问题。

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The space debris population increases with the launch rate.

空间碎片增长率约为发射率的两倍；

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In an update just this month, GeoHazards wrote, "With an annual population growth rate of 6.5 percent and one of the highest urban densities in the world, the 1.5 million people living in the Katmandu Valley were clearly facing a serious and growing earthquake risk."

国际地质灾难协会在本月的更新信息中写道，“这里的年均人口增长率为6.5%，而且城市密度位于世界最高之列；在这种情况下，住在加德满都谷的150万人明显面临着严重而且越来越大的地震风险。”

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The rate equation formalism is used to develop the concepts of laser threshold, population inversion and modulation response.

比例方程式形式用来生成雷射临界点、能态数反转与调变反应的概念。

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Objective To reduce the birth rate of β-thalassemia major and improve the quality of population.

目的减少β-地中海贫血重症患儿的出生。

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The England population developed slowly after the Black Death according to population replacement rate.

同时，通过人口替代率的考察，可以看出英国人口在黑死病后长期发展缓慢。

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on determining whether rodent pest population becomes extinct, the contraception rate, kill rate, harvest rate etc have same effect.

在决定种群是否灭绝上，不育率、灭杀率、选择性收获率等的作用是相同的。

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Against a background of the worldwide shortage of energy and other natural resources, it would be like "levering the earth up" for China to keep her economic growth rate at 5% annually, considering her large size of population and shortage of natural resources.

在世界能源、矿产形势严峻的背景下，如果经济能以5%的速度持续增长，对人口众多、人均资源少的中国来说，也堪称完成了一件撬起地球的伟大事业。

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A 30 day field tests with chlorpyrifos bait gave a 66.7% rate of a termite population control on a dam.

其中毒死蜱毒饵在为期30d的水坝白蚁诱杀防治中取得最高（66.7%）的防治效果。

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