英 [ˈprevələns] 美 [ˈprevələns]
n. 流行，盛行
the quality of prevailing generally; being widespread
he was surprised by the prevalence of optimism about the future
(epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population
a superiority in numbers or amount
同义词： preponderance
流行-引用次数：120
There were a large numbers of pigs fed in Henan province , where the prevalence of Swine Fever was very severe.
河南省是我国的养猪大省，也是我国猪瘟流行严重的地区之一。
流行-引用次数：22
With the prevalence and popularity of web 2.0 in recent years, research and application on social networks (SNS) is becoming a focus of public attention.
近年来随着Web 2.0的流行和普及,对社会关系网络(SNS)的研究和应用逐渐成为关注热点。
普遍-引用次数：2
Such equipments are used for processing the products prevalence of poor quality, lack of variety and high cost,availability such a long period, therefore is uncompetitive on world and domestic markets.
用这种装备加工出来的产品普遍存在质量差、品种少、成本高、供货期长等现象,因而在国际、国内市场上缺乏竞争力。
盛行
流行
盛行
（3）观察时间：可以确定一定的观察时间，多为1年。2、患病率（prevalence）：某特定时间内总人口中某病新旧病例所占的比例。患病率可按观察时间的不同分为时点患病率和期间患病率。
流行（Prevalence） ：一种比例种类。一定时间周期内某疾病的病例数增加的倍数测量。
学童先天性心脏病的防治现况-中国名医推荐网 关键词：筛检；先天性心脏病；盛行率 [gap=1566]Key words: screening； congenital heart disease； prevalence
... concrete adj. 以物质形式存在的；具体的；实体的；确实的；明确的；确定的 prevalence n. 普遍；盛行；流行 1．promoted 妇女们也更有可能获得雇佣、丰厚的收入以及获得晋升。 ...
prevalent 流行的；普遍的，广传的
流行；普遍；广泛
Could it be the prevalence of tea in their culture?
是因为茶在他们的文化中流行而造成的吗？
The prevalence of black and Asian faces among those targeted has caused especial resentment.
黑人和亚洲人的面孔在那些目标人群中普遍存在，这引起了特别的不满。
Epidemiological studies have found that children with PDD have no higher prevalence of gastrointestinal tract than normal children.
流行病学研究发现，广泛性发育障碍（Pervasive Developmental Disorder）孩子和正常孩子相比较并没有更高的胃肠道患病率。
The prevalence of HIV/AIDS in Mali is low for West Africa, effecting less than two percent of the adult population.
VOA : standard.2009.10.21
So, this just shows as the vaccine was distributed, given to more people, that prevalence of the disease dropped dramatically.
因此,这表明随着疫苗的推广,以及接种人数的增加,该疾病的患病率显著降低
生物医学工程探索课程节选 : 耶鲁公开课
As those doses were given you look at the prevalence of polio within the United States.
随着疫苗的使用,你可以看到全美小儿麻痹症
生物医学工程探索课程节选 : 耶鲁公开课
Botswana has a small population, about two million, but a very big HIV prevalence rate.
VOA : standard.2010.05.10
This high prevalence rate has fueled the tuberculosis epidemic.
VOA : standard.2010.05.29
This one was done in Spain, so other regions may vary in terms of prevalence.
FORBES: Why GMO Food Opponents Shouldn't Freak Out About Cauliflower Virus DNA
The increasing prevalence of free access at hotels seems to be at a tipping point.
Our list also highlights the growing prevalence of regional air carriers in the skies.