最后一次冰川作用的漂浮物沉积在最近的其中一个地质时期——更新世，这段时期从180万年前持续到1万年前。
The drift of the last glaciation was deposited during one of the most recent epochs of geologic time, the Pleistocene, which lasted from 1.8 million to 10,000 years ago.
甚至许多熟读这段时期历史的人都不知道，这也是一场编写代码者和破译代码者之间的战争。
It was also, and this is unknown even to many people well read about the period, a battle between those who made codes and those who broke them.
Keyssar考察了1870-1920年这段时期，重点研究了马萨诸塞州，那里的历史资料特别丰富，研究结果也适用于其他工业区。
Examining the period 1870-1920, Keyssar concentrates on Massachusetts, where the historical materials are particularly rich, and the findings applicable to other industrial areas.
这段时期有着狂放鞑靼男孩很明显的印记。
The period is virtually stamped in his wild boy, androgynous, Tatar image.
传记作家试图说明他这段时期的经历，描述了很多虚构的故事。
Biographers attempting to account for this period have reported many apocryphal stories.
在这段时期，这个人离开药物治疗让我哥们去看望他。
During the time this person is off on medical leave my buddy goes to visit him.
但这段时期Twitter上并没有太多的潜在客户。
There weren’t too many potential clients on twitter at this point.
这段时期大约开始于43岁，47、48岁时到达顶峰。
It starts around age 43 and reaches its pinnacle by 47 or 48 years old.
这段时期的核心经济指标是从经济衰退中复苏，而非国际收支平衡。
These days recovery from the recession, rather than the balance of payments, is the crucial economic indicator.
这段时期，它偏离平衡状态太远，以至于今天处于结构性危机之中。
For a while now, it has moved too far from equilibrium, such that it is today in structural crisis.
要知道，这段时期的失业率，一直低于70年代，这个我们几分钟前曾提到过。
You know the unemployment rate has been lower during this period than in the '70s as we talked about a few minutes ago so...
那我劝你从现在起就‘这样’去想。 这会使你感到这段时期不那么难熬。
I suggest you start thinking‘that way．’It would make it easier to get through this time．
不过，该结果不包括建筑业和零售业，而这两个行业在这段时期境遇甚至更糟。
But the results excluded the construction and retailing sectors, which had fared even worse over the period.
这段时期，他设法拍摄了共计70位非洲王朝的君主和王室后裔一系列工作照。
During this time he managed to photograph 70 monarchs and descendants of the great African dynasties with his work on this series.
小白鼠的青春期始于出生后大约60天，因此这段时期研究人员观察得尤为仔细。
Rats hit puberty when they are about 60 days old, so the researchers started watching them especially closely around that age.
这段时期之后，负半轴相关线骤然消失，进入正半轴，但在统计学上不具实际意义。
Then, suddenly, the negative correlation vanishes. The line goes into positive territory, but not enough to be statistically meaningful.
吉尔通过研究地质沉降物中保存下来的真菌孢子，来分析这段时期前后动物的生存状况。
Gill has been studying animals that lived around that time, using fungal spores preserved in sediment as an indicator of the presence of wildlife.
然后他测验，在从1871年到2009年的这段时期内，这样的策略产生了怎样的效果。
He then tested how such a strategy would have worked over the period from 1871 to 2009.
这段时期内，大量移民使日本人口超过了100,000，而密克罗尼西亚当地居民约40,000。
During this period, extensive settlement resulted in a Japanese population of over 100,000 throughout Micronesia while the indigenous population was about 40,000.
在这几十年间，欧洲频繁遭受了罕见的严酷寒冬的袭击，而这段时期后来就被称为小冰河时代。
During those decades Europe suffered frequent unusually harsh winters, and the time was later termed the Little Ice Age.
在我们人民遭受苦难的这段时期，我会竭尽全力为我们的女人、男人和孩子们创造适宜的环境。
During this time of the plight of our people I shall endeavour as far as it is in my power to create bearable conditions of life for our brave women, men and children.
这段时期在中国是1990年至2005年，期间中产阶级的人口份额从15%飙升至62%。
That stage was reached in China some time between 1990 and 2005, during which period the middle-class share of the population soared from 15% to 62%.
直到眼前这段时期，我一直避免给她最轻微的借口要求离开；不仅如此，谁要是分开我们，她也不会感谢的。
I have avoided, up to this period, giving her the slightest right to claim a separation; and, what's more, she'd thank nobody for dividing us.
没有人生下来就有微生物群，它是在婴儿生下来后第一年内形成的。这段时期是研究者的研究课题。
Except no one is born with microbiota. It develops during the first year of life. Hence the age of the research subjects.
没有人生下来就有微生物群，它是在婴儿生下来后第一年内形成的。这段时期是研究者的研究课题。
Except no one is born with microbiota. It develops during the first year of life. Hence the age of the research subjects.
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