美国一直是一个流动性很强的国家，但美国人口普查局的最新数据显示，美国的人口流动率已降至有记录以来的最低水平。
The US has always been a remarkably mobile country, but new data from the Census Bureau indicate that mobility has reached its lowest level in recorded history.
与此形成鲜明对比的是2000年到2001年。人口流动率从15%以上降至不到14%。
Between 2000 and 2001, in contrast, the migration rate fell from over 15% to under 14%.
2008年的人口流动率只有不到12%，州间流动率跌倒1.6%，不到战后数十年水平的一半。
In 2008 the domestic migration rate was just under 12%, and the rate of migration between states fell to 1.6%-less than half the level that prevailed in the post-war decades.
雨季等季节性因素以及该地区的人口流动造成这一极不寻常的霍乱高发病率。
Seasonal factors, such as the rainy season, along with population movements in the area contribute to this unusually high incidence of cholera.
强降雨雨季等季节性因素以及该地区增多的人口流动造成这一极不寻常的霍乱高发病率。
Seasonal factors, with a particularly heavy rainy season, along with increased population movements in the area contribute to this unusually high incidence of cholera.
长久以来，美国人口频繁流动，为美国经济实力壮大做出了巨大贡献。因为人口流动能够扩大高效劳动力市场，降低失业率。
A high degree of population mobility has traditionally been one of America's great economic strengths, providing a flexibility that allows for more efficient Labour markets and lower unemployment.
尽管巴基斯坦的脊髓灰质炎发病率在1995年到2000年间降低了10倍，但战争冲突、恶劣的卫生条件和人口的流动使病例数量在去年激增了62%。
And although in Pakistan the incidence of polio dropped tenfold between 1995 and 2000, conflict, poor sanitation and a mobile population helped the number of cases jump by 62% last year.
城市里学校数量紧缺，导致很多流动人口的子女留守乡村，住在亲戚家，不少国人亦抱怨这也是青少年犯罪率激增的原因之一。
A shortage of schools in cities leads many children to stay with relations in villages. Many Chinese complain that this fuels delinquency.
目的了解流动人口新生儿破伤风发病情况，探讨综合干预措施对降低新生儿破伤风发病率的作用。
OBJECTIVE to explore the newborn tetanus outbreak situation of mobile population and to study the function of the synthetical interfering measure in lowing the tetanus outbreak rates.
结论流动人口是控制新生儿破伤风的重点人群，加强综合干预对降低新生儿破伤风发病率有重要意义。
CONCLUSIONS Mobile population are the key groups in controlling newborn tetanus outbreak rates, and it is important to enhance the synthetical interfering in lowing the newborn tetanus outbreak rates.
当今世道由于人口流动，也造成新的离婚率不断高扬的社会问题。
Nowadays, with the frequent population mobility, the soaring divorce rate has turned out to be a serious social problem.
结论流动人口聚集地区流动儿童免疫规划疫苗接种率低于本地常住儿童，需加强综合管理措施。
Conclusion The immunization coverage rates of vaccines was low for floating children in migrant population gathering area, and comprehensive measures should be put into effect.
结论加强流动人口儿童的免疫规划工作，提高流动人口的麻疹疫苗免疫接种率，是今后控制麻疹的重点。
Conclusion Basic immunization of children living with floating population must be strengthened and the immunization coverage rate in floating population must be improved.
目的：了解海淀区流动人口孕产妇在北京分娩状况及分娩费用，为提高流动人口孕妇住院分娩率提供依据。
Objective:To investigate the childbirth status and childbirth cost in Beijing among migrant maternal women in order to offer reference basis for improving the rate of hospitalized childbirth.
三峡库区近年来与人口流动有关疾病的发病率明显增加。
In recent years, the incidence of floating people-related diseases greatly increased in Three-Gorges areas.
结果1994～ 2 0 0 1年流动人口传染病发病率逐年上升，平均年发病率高于常住人口，发病占前三位的是病毒性肝炎、流行性出血热、痢疾。
Results From 1994 to 2001, the total rate in notifiable infectious diseases in floating population were increased year by year, and were higher than that of permanent residents.
人口迁入率和净迁移率的导引作用相对明显，人口迁移可以认为是对移动通信信息流动的外部导引；
Population migration rates and net migration rate have relatively clear role on guidance, population migration can be considered the external guidance to the information flow of mobile communication;
人口迁入率和净迁移率的导引作用相对明显，人口迁移可以认为是对移动通信信息流动的外部导引；
Population migration rates and net migration rate have relatively clear role on guidance, population migration can be considered the external guidance to the information flow of mobile communication;
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