查询词典 decrease in population

Meanwhile, population saturation leds to the Fate of Malthus. Through technological advancing, Western Europ escapes from the Fate of Malthus. The increation of population promote the development of romote areas. The difference of natural conditions and populational density between the new ares and the old areas have people produce different products. In addition, the portages by warter cost cheap, that stimulates market developing.

西欧通过技术进步率先摆脱了&马尔萨斯宿命&，诺思用&人口模型&解释了西欧这一重大的历史变迁：人口增长导致边远地区的开垦，新老地区不同的自然条件和人口密度使人们生产了不同的产品，加上水路运费低廉，刺激了商品市场发展。

Africa is the world 's second largest continent in both area and population.its are is more than three times the size of the united states,and its population makes up 12 precent of the world's total.

在人口和面积上看，非洲算是世界第二大洲了。他的面积比美国的3倍还要大，而的人口是世界人口的12%。

Whats more ,the disquisition depicts the different pattern of urbanization in the world.points out the influence of urbanization to society development and concludes that there is a protrudent phenomenon that the population in rural area continuously transfers into the city called the population urbanization..

本文首先对城市化的概念、类型及水平测定进行了归纳总结，描绘了世界城市化进程中的三种不同状态，并指出了城市化对社会发展所产生的影响。

At present, consensus about rural industrialization and rural population migrants has not been achieved in the economic literatures, controversies still exist about strategic status of rural modernization and choices of rural industrialization and choices of rural population migrants ;in pr-actice , although usually emphasize the importance of problem of the farmer and rural and agriculture , but always did not put a premium on the rural reformation, only from the perspective of provisionment security and social stablity and expanding demand . Various policies does not coordi 梟ated.

目前，理论界对农村工业化和农村人口城镇化的认识还不一致，对农村经济现代化的战略地位、农村工业化道路选择、农村人口城镇化道路选择等问题存在一定的分歧；在实践中，虽然经常强调农业和农民问题的重要性，但始终没有将进一步推进以农村为重心的改革提高到战略高度，只从保障粮食供给和稳定社会秩序、扩大内需的角度来强调&三农&工作的重要性，各项政策措施缺少协调配合。

It is only nowadays that Punti gave up little by little the place for the benefit of Hakka, itself endangered, especially in the young population The Chinese of Tahiti nowadays At present, the Polynesians of Chinese origin form 5 % of the population.

只是如今，语言放弃一点一滴地为客家人，本身濒危的，特别是在年轻一代的中国人如今大溪地目前，波利尼西亚人华人中的5%的人口。

Afterwar northeast inferior the profundity of structure of industry of each country population changes, show respective historical characteristic and strong drop racily, reflecting the general rule that population industry structure changes.

战后东北亚各国人口产业结构的深刻变化，都生动地表现出各自的历史特点与强点，并反映着人口产业结构转换的一般规律。

The effect of imposed sterility and culling on the reproductivity and population size of Ratlike hamster in enclosures was studied by using surgical operation. This study aims to testify two modeling predictions: fertility control can achieve similar result as simple culling, and sterility of both sexes can achieve an extra result in reducing reproductivity of hamsters. The key factors in population regulation of the hamster were also discussed.

本文采用结扎不育的方法研究了不育和&灭杀&对围栏内大仓鼠实验种群繁殖力和数量的作用，主要验证模型的两个预测：不育能够达到灭杀的效果；双性不育优于单性不育，同时探讨了大仓鼠种群调节中的关键因子。

In this part, the concepts of the aged and the population aging are explained distinctly, the development traits and trend of population aging in world and China are stated reasonedly.

然后分析了世界和中国人口老龄化的发展特点及趋势，为后文对山东省人口老龄化的分析奠定理论和实践基础。

In this part, the concepts of the aged and the population aging are explained distinctly, the development traits and trend of population aging in world and China are stated reasonedly.

然后分析了世界和中国人口老龄化的发展特点及趋势，为后文对山东省人口(来源：ABC论文e9e9网www.abclunwen.com)老龄化的分析奠定理论和实践基础。

Continuous flow experiment was carried out using acidogenic-desulfate bioreactor and it is suggested that on quality,SRBis the hydrogen consumer and the remaker of the end products of AB;and maintains the typical characteristic of"acetate-type" metabolism of its population. On quantity, SRB maintains dynamic balance between"substrate chain"and"bio-chain",describing the dynamic of its population.

采用产酸脱硫反应器进行连续流试验，提出在&质&的方面，SRB是产酸脱硫生态系统中氢的&消费者&和产酸菌酸性末端产物的&改造者&，并维持着群落&乙酸型代谢&的典型特征；在&量&的方面，SRB种群通过数量波动维持着&基质链&与&生物链&的动态平衡，并以种群动态为表征。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。