As mass production techniques were refined in the 19th century, the price of pianos dropped to the point that a larger proportion of the population could afford to own them.
随着19世纪大规模生产技术的改进，钢琴的价格下降到更多人都买得起的程度。
Astronomers have long speculated that the missing baryonic mass might eventually be discovered in intergalactic space or as some large population of galaxies that are difficult to detect.
天文学家长期以来都在推测，最终可能会在星际空间或者是在难以探测的大量星系中发现丢失的重子质量。
Many countries use ivermectin in a strategy called mass drug administration (MDA), which means that the entire population in an affected area is given the drug once or twice a year.
许多国家在一项叫做“大规模药物配给（MDA）”的战略中运用伊维菌素，该战略意味着在感染疾病的地区针对全部人口每年给药一两次。
The risk variant of the FTO gene (fat mass and obesity associated) is common in the general population. 17 percent have double copies, meaning they have inherited it from both parents.
各种肥胖和肥胖相关的风险基因广泛存在于普通于人群中。
The most recent yellow fever mass vaccination campaign in this area was conducted in 1987 and as a result the population is highly susceptible to the disease.
该地区最近一次黄热病大规模预防接种运动是在1987年进行的。因此，这里的人口极易受该病的影响。
A mass vaccination campaign is being prepared in both countries to protect the population at risk and to prevent the spread of the disease to densely populated urban Settings.
这两个国家都在准备开展大规模预防接种运动以保护危险人口和防止该病向人口密集的城市住区蔓延。
In 2000 the World Health Organization cites the crisis as "the largest mass poisoning of a population in history."
2000年，世界卫生组织把这场危机称作“史上中毒人数最多的事件”。
Being divorced at, say, age 33 in 1962 meant becoming a singleton amid a mass of married people, as the overwhelming majority of the population married by age 30.
1962年33岁的人离婚意味着在已婚人群中成为单身，那时绝大多数人30岁前结婚。
The so-called population urbanization not only means the increase in the numbers of cities and population, but also the tendency and process of the mass population gathering towards big cities.
所谓人口城市化不仅表现在城市数量的增多与城市人口比重的提高，而且还表现为众多人口日益向大城市聚集的趋势和过程。
More than 1.9 billion people, representing 28% of the world's population, live in the 23 countries that have implemented at least one strong anti-tobacco mass media campaign within the last two years.
23个国家在过去两年中至少开展了一项强有力的反烟大众媒体宣传运动，有19亿多人在这些国家生活，占到世界人口的28%。
Human population is drastically reduced. Perhaps 90% of species become extinct, rivalling the worst mass extinctions in the Earth's 4.5 billion-year history.
人口数量大幅减少，也许90%的物种会灭绝，情况堪与地球45亿年历史中最严重的大规模灭绝匹敌。
And I realize that I have not succeeded in my attempt to render the horror of this mass slaughter of the helpless Jewish population.
我清楚地知道，我未能成功地描写出滥杀孤立无援的犹太人的恐怖气氛。
Focusing on the mass population balance model, the effect of granule size distribution on the packing voidage will be discussed in detail.
研究工作将在质量集合平衡模型的基础上，考虑造粒粒度分布对孔隙度的影响。
Since it is suggested that calcium is absorbed more so in smaller individuals, the researchers accounted for body mass index (BMI) in this Chinese population.
同样在华人中由于体重指数的原因，钙摄入在少数个体中会增加。
In the overall population, ADMA plasma levels correlated with body-mass index, creatinine levels, and plasma triglyceride levels, but not with age, the results indicate.
在全部人群中，ADMA血浆水平与体重指数、肌氨酸酐水平和血浆甘油三酸酯水平相关，但与年龄、结果显示不相关。
Objectives: to explore the epidemiological distribution of body mass index (BMI), waist to hip ratio (WHR) and abdominal circumference in population of Nanjing, Jiangsu Province.
目的：探讨南京地区健康人群中体重指数(BMI)、腰臀围比(WHR)及腹围的流行病学分布状况。
Conclusion: the knowledge and ability of rodent control in population would be reinforced if those mass media education carried out together.
结论：需考虑采用广播、电视、墙报和宣传画等综合宣教方式，提高人群日常防鼠灭鼠知识和能力。
In the 20th century, we measured a nation's wealth primarily by its natural resources, its land mass, its population and its army.
在20世纪，我们主要用一个国家的自然资源、国土面积、人口数量和军事力量来衡量它的财富。
Results The 25 foci malaria outbreak occurred in the quarry, tile field and the peripheral villages with mass of mobile population from 1982 to 1994.
结果1982～ 1994年2 5个疟疾暴发点均发生在流动人口聚居的采石场、砖瓦厂及邻近村庄。
Results The 25 foci malaria outbreak occurred in the quarry, tile field and the peripheral villages with mass of mobile population from 1982 to 1994.
结果1982～ 1994年2 5个疟疾暴发点均发生在流动人口聚居的采石场、砖瓦厂及邻近村庄。
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