Population concentration is affected by many factors, among which the household registration system is a major one.
影响人口聚集的因素很多，其中，户籍制度是一个重要因素。
We in the 21st century, when the urbanization should consider these new factors, avoid to the center city population concentration and detours.
我们在21世纪推进城市化的时候，是否应该考虑这些新因素，避免人口过度向中心城市集中而走弯路。
With the quicker course of urbanization and population concentration, the amount of excrement and urine in cities are steadily on the increase.
随着我国城市化进程的加快和人口大量集聚，城市人粪尿与日俱增。
Village or village was in people's sight but the broad land or the mountai distribution of pin-points of small population concentration living place.
村庄或村落本来在人们的眼界中只是那广大地皮或群山当平分布着的星星点点的小型人聚集中居住生存之地。
With the rapid expansion of city size and population concentration, improving the urban disaster prevention system has become a daunting task can not be ignored.
健全城市防灾系统成为一项不容忽视的艰巨任务，这是由城市规模的急速扩大和人口的过度集中所造成的。
More importantly, the population concentrations for emergency services is not useful, therefore, excessive concentration of mobile population on social security is a challenge.
更加重要的是，人口的集中对于处理紧急事务是没有正面帮助的，所以，过多集中的流动人口对社会治安是一个挑战。
However, the overall levels of BPA concentration were lower than those from another study looking at men in the general population.
但是总体BPA浓度水平低于另外一项对多数人群进行观察的研究中的水平。
Such a concentration of uranium means the lifetime cancer risk in the village was more than 153 times higher than in the normal population.
如此高的铀浓度意味着该村庄的人患终身癌症的风险超过普通人群的153倍。
In response to the appearance of such variants in the cell population the concentration of the toxic chemical in the growth medium is increased, thus keeping the selection pressure constant.
为应对细胞污染中出现的变异，有毒物质的浓度是逐步增加的，以此保证筛选力度的稳定。
Foreland is concentration of Fujian Province population, economy developeds area.
沿海地区是福建省人口集中、经济发达地区。
Agricultural industrialization with land concentration operation as foundation is another important channel to solve the urbanization problem of our country rural population.
以土地集中经营为基础的农业产业化是解决我国目前农村人口城市化问题的一条重要途径。
With the rapid expansion of city scale and the excessive concentration of population, the sound urban disaster prevention system has become a necessary arduous task.
随着城市规模的急速扩大和人口的过度集中，健全城市防灾系统已成为一项不容忽视的艰巨任务。
The time of dynamic nitrogen adjustment were determined by regular patterns or by the comprehensive evaluation of soil mineral nitrogen concentration and rice population status.
氮素动态调控时期由高产栽培常用的追肥时期或根据水稻群体状况与土壤矿质态氮浓度综合判断确定，追氮量由模型计算获得。
It's suggested that iodine nutrition surveillance of pregnant and breast feeding women should be strengthen, adjusting the concentration standard of salt iodine for all target population.
建议今后要加强孕妇和哺乳妇女的碘营养监测，并以其作为目标人群来调整食盐加碘浓度。
With rapid growth of urban economy and concentration of population, there is urgent need to construct urban tunnel and underground projects.
随着城市快速经济的增长及人口的高度集中，城市隧道及地下工程的修建日益迫切。
The dosage of interest is typically the lethal concentration, known as LC50, that will kill 50% of the population of organisms in a given period of time.
需要测试的剂量是致命浓度(LC50)在给定时间内能杀死50%生物体的剂量。
It also offered that the concentration of population from natural villages to central villages should be regarded as one of the urbanization forms.
这种人口由自然村向中心村镇的集中也应看作是城市化的一种形式。
The concentration of radio-elements in building materials and its components are important in assessing population exposures, as most individuals spend 80% of their time indoors.
建材及其组件的无线电元素浓度在人口风险评估是重要的，因为大多数人花费80％的时间是在室内。
Having brownish acidic waters a high concentration of humic matter and a small plant population. used of a lake or pond.
无滋养的带有棕色酸性物质的水域，腐殖物高度集中并有小型植物群的。用来描述湖泊或池塘。
Regarding the urbanization, I think it is a historical progress featuring of the concentration of population , efficiency , mutual interaction between city and rural area.
对于城市化的理解，笔者认为城市化是一个历史的过程，是以人口的集中为重点的资源集聚过程，是追求效益集约的过程，是城乡互动的过程。
Having brownish acidic waters, a high concentration of humic matter, and a small plant population. Used of a lake or pond.
无滋养的带有棕色酸性物质的水域，腐殖物高度集中并有小型植物群的。用来描述湖泊或池塘收藏。
The reason is the spatial concentration of population and resources had the effect of increasing returns to scale.
原因是人口和资源的空间集聚产生了规模收益递增的效应。
The relationship between the population growth rate and the food concentration was curvilinear correlation.
其中，轮虫种群增长率与食物浓度间呈曲线相关；
After intervention, the condition of fluorine pollution caused by burning coal, fluoride intake and urine fluoride concentration of the population were determined.
实施干预后监测燃煤氟污染，测定人群摄氟量和尿氟水平。
After intervention, the condition of fluorine pollution caused by burning coal, fluoride intake and urine fluoride concentration of the population were determined.
实施干预后监测燃煤氟污染，测定人群摄氟量和尿氟水平。
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