The leaf area of two different grades branch is mainly proportion of total leaf area in different age period.
在顶坛花椒的不同年龄阶段，约两种左右枝级的叶片面积是植株总叶面积的主要组成部分。
A second experiment zoomed in on the age period of two to three years, to see how colour preferences changed during this crucial year.
第二个实验重点关注二到三岁这个年龄段，看在这个关键的一年颜色偏好是怎么变化的。
The affairs of relevant study and school become one of the initial factor which arouse fear, after the children enter the school age period .
进入学龄期后，与学校和学习有关的事件成为诱发我国儿童恐惧的首要因素之一。
Though different clinically and electroencephalogramically, they have the common characteristics: (1) Inclining to attack in a certain age period;
三者虽各具其临床和脑电图特点，但也有共同的特征：（1）倾向于在特定年龄阶段发病；
On the basis of spot sample and laboratory experiment, authors studied the time-variant probability model early age period mechanical properties of high-strength concrete.
通过现场试验建立了高强度混凝土早龄期力学性能的经时概率模型。
Age period cohort model is widely used by epidemiologists to analyse trends of chronic diseases. The statistical model provides a useful modification for traditional descriptive epidemiology.
年龄时期队列模型广泛应用于描述性流行病学来分析慢性病发病率和死亡率变化趋势，它改进了传统的疾病描述性分析方法。
The period from 3000 to 1000 B.C.E., when the use of bronze became widespread, is normally referred to as the Bronze Age.
在公元前3000年到公元前1000年，即青铜器被广泛使用的这一时期，通常被称为青铜时代。
This chapter examines the "Golden Age" of the Hollywood film studio system and explores how a particular kind of filmmaking developed during this period in US film history.
这章考察了好莱坞电影制片厂系统的“黄金时代”，并探讨了美国电影史上这一时期一种特殊的电影制作方式是如何发展起来的。
It peaks in young adulthood, levels out for a period of time, and then generally starts to slowly decline as we age.
它在青年时期达到顶峰，在一段时间内趋于平稳，然后普遍会开始随着年龄的增长而缓慢下降。
If you age more slowly over a longer time period, then you are in some sense younger for longer.
如果你在一段较长的时间里衰老得比较慢，那么在某种意义上，你年轻的时间更长。
Turns out the Cremonese violins were made from trees that grew during a Little Ice Age, a period when temperatures across Europe were significantly lower than normal.
事实是，克雷蒙小提琴由生长在小冰河时期的树木制成，当时整个欧洲的气温明显低于正常水平。
This age group corresponds for many women to the period when they are single.
对很多妇女来说，这一年龄组适合于单身阶段的妇女。
The transition from exclusive breastfeeding to complementary feeding (which includes continued breastfeeding) typically covers the period from 6 to 18-24 months of age.
从完全母乳喂养过渡到补充喂养(包括继续母乳喂养)通常涵盖年龄为6至18—24个月这一时期。
This period of my life, from the age of fifteen or sixteen to twenty-two or twenty-three, was one of utter disorderliness.
从十五六岁到二十二三岁，我这一阶段的生活是完全杂乱无序的。
Around 11, 000 years ago, the world underwent a violent and rapid period of climate change, leading to the end of the last Ice Age.
大约一万年前，这世界经历了剧烈而快速的气候巨变期，导致了最后一次冰河时代的终结。
Complementary feeding typically covers the period from six to 24 months of age, and is a very vulnerable period.
补充喂养通常涵盖了6至24个月龄这一年龄段，这是一个非常脆弱的时期。
The period when these brain cells learn to make these connections most rapidly is the period between birth and three years of age.
大脑的学习使细胞间的连接更加快捷，这一变化的关键时期就是从出生到3岁这段时间。
In the same period, those under the age of 14 declined from 23% to 17%.
而在这同一时期内，14岁以下的人口从2000年的23%下降至17%。
Others say that after 2012, the Earth will experience a period of terrible destruction followed by a new age of peace and enlightenment.
另一些人说， 2012年后，地球将遭受到可怕的破坏，这段时间过去之后，一个崭新的和平与启蒙的时代将会开始。
"I felt personally attacked," he said. "in many ways, Sen." Craig is the same age and from the same kind of community and same period of time as I am.
“我反而觉得自己被冒犯了，”他说，“因为在很多方面克雷格参议员和我是一样的——同样的年纪，来自同一种社会团体，生活在同一个年代。”
They came of age during the Great Moderation, a period of macroeconomic tranquillity and intellectual consensus.
他们出现在“大温和”时代，一个宏观经济稳定、思维一致的时代。
It was the first of a series of voyages that would, for a brief period, establish China as the leading power of the age.
这次远航揭开了其后一连串海上航行的序幕，并在短暂时间内为中国确立了大国领先的地位。
For the generations who grew up with these characters, there is no sudden age where we can only cope with period dramas and Woody Allen films.
对这些演员的同时代人来说，不会突然有一天，光看老电影和伍迪·艾伦的作品，就能对付的。
The intimacy between me and my friends is vanishing, and I feel I am missing out on a period of time that should be the happiest for a girl my age.
我和朋友的关系也渐渐淡了，我觉得自己错过了我这个年龄的女孩人生中最快乐的时光。
This period of history has been called the Information Age because it makes available instant access to knowledge that would have been difficult or impossible to find previously.
我们称这个时代为信息时代，因为我们能够随时获得我们从前很难或者不可能获得的知识。
Research from the United States and Britain has found that youth unemployment leaves a "wage scar" that can persist into middle age. The longer the period of unemployment, the bigger the effect.
英美两国研究发现，青年时期失业会让人遗留下“工资伤疤”，它会伴随人进入中年，而且失业时间越长，影响越大。
Stunting in children under five years of age has decreased globally from 40% to 27% over the same period.
同期，全球五岁以下儿童发育迟缓比率也由40%降至27%。
Stunting in children under five years of age has decreased globally from 40% to 27% over the same period.
同期，全球五岁以下儿童发育迟缓比率也由40%降至27%。
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