The basic ingredients are limestone and clay in the proportion 2:1.
基本成分是石灰石和黏土，比例为2:1。
Third, growth was reflected in changes in the proportion of the relevant age group enrolled in institutions of higher education.
第三点，相关年龄组在高等教育机构就读比例的变化反映了增长。
In America, a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off.
在美国，移民在人口中所占比例每增加一个百分点，本土出生的人口生活水平就会提高0.05%。
The other three species differ in the proportion of lower leaves and higher stems that they eat: zebras eat the most stem matter, wildebeests eat the most leaves, and topi are intermediate.
其他三种动物的区别在于它们食用的低处枝叶和高处茎杆的比例不同：斑马吃茎杆最多，角马吃叶子最多，而转角牛羚则介于两者之间。
Sadly, the increase in the proportion of Americans who graduate from college has slowed.
更可悲的是，美国大学毕业生比例的增长速度已在逐渐减缓。
America has fallen to ninth in the proportion of young people with a college degree.
美国青少年拥有大学学位的比例已降至全球第9位。
There was an increase in the proportion of women who initiated ART while pregnant but no change in other baseline characteristics over time.
尽管孕妇接受抗逆转录病毒疗法的比例有所增加，但是其他基线特征并没有随着时间的推移而有所改善。
Progress in meeting these challenges would be shown by a fall in the proportion of slum-dwellers, who currently account for 70% of urban inhabitants.
应对这些挑战所取得的进展将从难民比例下降中体现出来，目前难民占城市居住人口的70%。
For decades, the U.S. led the world in the proportion of citizens with college degrees, but in recent years it has been surpassed by other countries.
数十年以来，美国一直在拥有大学教育的公民比例方面领先世界，但在近年这方面已经被其他国家超过。
This finding turned up in the proportion of kids who were immigrants, who changed cities between ages 8 and 16 or who were raised in a single-parent home.
这个发现出现在经常搬家的孩子中，他们8岁到16岁之间换个城市生活或是在单亲家庭中成长起来的。
Finally, the economic turmoil at many big media outlets has also led to a rise in the proportion of content from poorly paid interns and freelance journalists.
最后，在危机中的大型媒体更加提高了薪水很低的实习生以及已有撰稿人的的雇佣比例。
There has been a small but consistent decline, of about one per 1,000 births annually, in the proportion of boys being born in industrialized countries over the past 40 years.
在过去40年中，发达国家的男孩出生率一直以每年约千分之一的比率小幅下降。
There has been a small but consistent decline, of about one per 1, 000 births annually, in the proportion of boys being born in industrialized countries over the past 40 years.
在过去40年中，发达国家的男孩出生率一直以每年约千分之一的比率小幅下降。
However, one of the most important explanations was the change in eating habits, including a 40 per cent rise since the 1980s in the proportion of calories coming from fat in the average diet.
但是，最重要的解释之一则是饮食习惯的改变：自上世纪80年代以来，来自日常饮食所含脂肪的热量比例提高了40%。
The proportion of women in middle management has risen to 40%.
中层管理人员中女性的比例已经上升到了40%。
A large proportion of the dolphins in that area will eventually die.
那个地区的很大一部分海豚最终都会死去。
The proportion of men to women in the college has changed dramatically over the years.
近年来，这个学院的男女学生比例出现了剧变。
The proportion of empty space in a rock is known as its porosity.
岩石中空隙的比例被称为孔隙度。
In Europe, the proportion of people living in cities was always smaller than that of the workforce working in factories.
在欧洲，生活在城市的人口比例总是小于在工厂里工作的劳动力比例。
In Japan the proportion is 35%.
在日本，这一比例为35%。
The relative proportion of different species of animals hunted by people in the region also changed progressively.
该地区被人们猎杀的各种动物的相对比例也在逐步变化。
On average, fathers spoke less than mothers did, but they did not differ in the length of utterances or proportion of questions asked.
平均而言，父亲比母亲说得少，但他们的话语长度和所提问的问题的比例并无差异。
The Newsweek list of top U.S. high schools was made this year, as in years past, according to a single metric, the proportion of students taking college-level exams.
和往年一样，《新闻周刊》今年的美国顶尖高中排行榜是根据参加大学水平考试的学生比例这一单一指标编制的。
Although the proportion of new cars in Donia's capital city has always been comparatively high, nitrogen dioxide emissions there have shown only an insignificant decline since 1993.
尽管在Donia的首都城市，新车的比例一直相对较高，那里的二氧化氮排放量自1993年以来仅略有下降。
The proportion of the population who are over retirement age has grown tremendously in the past few years.
超过退休年龄的人口的比例在过去几年中已急剧增长。
The proportion of women in the profession had risen to 17.3%.
从事那个职业的女性比例已经增长到17.3%。
The proportion of women in the profession had risen to 17.3%.
从事那个职业的女性比例已经增长到17.3%。
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