The vast improvements made in the field of medicine have served to lengthen our life expectancy and to reduce the rate of infant mortality.
医学领域的大进步延长了我们的寿命，降低了婴儿死亡率。
In the late 1970s, the infant mortality rate for the children of illiterate mothers was around 110 deaths per thousand live births.
在1970年代后期，在文盲母亲所生的孩子中，婴儿死亡率约为每1000名活胎婴儿中有110个夭折。
They chose several widely-measured and well-studied indices on which to base their index: GDP per capita, life expectancy at birth, infant mortality rate and the incidence of tuberculosis.
他们选择用于编制生活质量指数的，是四个被广泛测量并得到充分研究的指数：人均GDP、出生时的预期寿命、婴儿死亡率以及肺结核病的发病率。
Therefore a gradually decreasing infant mortality rate has led to a proportionate decrease in the size of our brains.
因此，婴儿死亡率的逐渐降低导致大脑容量成比例的减少。
There is a high infant mortality rate (60 for every 1000 births) and the prevalence of HIV among those between15-49 is 2.2 percent, according to World Bank estimates.
据世行测算，该国婴儿死亡率很高（新生儿死亡率为60‰）， 15-49岁人群中艾滋病毒流行率为2.2%。
The United States ranks 23rd among industrialized nations in infant mortality and has a growing rate of premature births, which defy an easy explanation.
美国的婴儿死亡率在工业化国家中居于23位，而且早产率一直攀升，这很难以解释。
To monitor the changing trend of infant mortality rate (IMR) in Hongkou district Shanghai, observe how IMR affected average life expectancy, in order to take proper measures to reduce the rate.
监测上海市虹口区婴儿死亡的变化趋势，观察婴儿死亡率对平均期望寿命的影响，并采取相应措施降低婴儿死亡率。
Objective: to investigate the meaning of the doula delivery in reducing the mortality rate of gravida, parturient and perinatal infant, in reducing complications during delivery and the dystocia rate.
目的探讨导乐式分娩对降低孕产妇和围产儿死亡率、减少产时并发症和难产率的意义。
In spite of increased spending on health care in the U. S., we have not always improved health status (e. g., infant mortality rate).
尽管在医疗方面的支出增加在美国，我们并不总是改善健康状况(例如，婴儿死亡率)。
Objective: to analyse the effect of abnormal cord on perinatal infant, take measures to reduce asphyxia rate of perinatal infant and mortality.
目的：分析脐带异常对围产儿影响，采取措施，降低围产儿窒息率和死亡率。
The regional variations of the perinatal mortality and the incidence rate of low birth weight infant in China were studied with trend-surface analysis.
应用趋势面分析法，对我国省、市和自治区围产儿死亡率和足月低体重儿发生率进行地理流行病学研究。
The trend of infant and under 5-year old children mortality rate declined in 5 years;
②北京市婴儿和5岁以下儿童死亡率呈下降趋势；
The bureau reported an infant mortality rate of 466 per 100,000 people.
卫生局的报告称，婴儿死亡率为每10万中466人。
The bureau reported an infant mortality rate of 466 per 100,000 people.
卫生局的报告称，婴儿死亡率为每10万中466人。
应用推荐