This estimated time of origin is decades earlier than the previous estimate of 1930.
此次估计的起源时间比原以为的1930年要早数十年。
They used this and other HIV-1 genetic sequences to construct a family tree of the origin of the viral strain and to estimate the time of origin of HIV-1 group m.
他们利用这个遗传序列与其他HIV - 1的遗传序列构建出起源病毒株的家系图，并以此估算出HIV - 1 M组的起源时间。
If surviving copies are few, the stemma perforce brings into proximity manuscripts that were widely separated in time and place of origin.
如果现存的手稿很少，家谱就必须纳入那些在时间和族地都分散的手稿。
What I do find interesting is the origin of the universe, the shape of space-time and the nature of black holes.
我真正感兴趣的是宇宙的起源、时空的形状和黑洞的性质。
As the evolution into three species would have taken extreme lengths of time, combined with the lack of fossil records in Africa, the team concludes that Asia was the most likely origin.
由于要进化成三个不同的物种需要特别漫长的时间，结合在非洲没有发现有关化石的记录，考古队得出结论，亚洲是该物种最有可能的起源地。
Birds evolved from dinosaurs, but the origin of their feathers may trace back even deeper in time, to the common ancestor of dinosaurs and pterosaurs, like the fossil at left.
鸟类是从恐龙进化而来的，但羽毛的起源则要追溯到更为久远的上古时代，恐龙和翼手龙的共同祖先才是羽毛出现的源点，例如上图左边的这块化石。
Such work has helped put Boston and Cambridge among the elite centers of studies of life’s origin, and Szostak is now devoted essentially full-time to synthesis of life.
这种工作促使波士顿和剑桥成为研究生命起源的精英中心，绍斯塔克现在基本上把全部时间用在生命合成上。
Now Nowak is out to do it again, this time by modeling the origin of life.
现在Nowak尝试把它再做一遍，而这一次，是为生命的起源建模。
What we don't know is if the Big Bang is the ultimate origin of time or whether there was a time before that." (Read the Plus article What happened before the Big Bang? for more on this subject.)
我们不知道的是大爆炸是不是时间的开始或者时间在大爆炸之前就有了。
The origin of western theatre goes back into the mists of time but seems to have begun to take recognizable shape about 2600 years ago in greece-and wine was a key ingredient.
西方戏剧的起源已经消失在历史的迷雾当中，但似乎在大约2600年以前的希腊，它已经有了我们熟悉的样子，——葡萄酒是其中一个关键因素。
At this time he knew nothing of Wells's and Matthew's accounts of natural selection; indeed, both accounts languished in obscurity until after the "Origin" was published.
此时他对马修和威尔士关于自然选择的阐述一无所知；事实上，直到《物种的起源》发表这两人一直默默无闻。
The origin of this phrase is linked with an early British practice, at a time when forests were still the exclusive property of royalty.
这个成语的来由是和早先英国的一个行为有关，那时候森林还是皇家的专属财产。
Please send us your best offer by fax indicating origin packing, quantity available and the earliest time of shipment.
请用电传给我们报最好价，并说明产地、包装、可供数量及最早发货日期。
At age 34, she decided it was time to solve the mystery of her origin and she began the search. It took her three years.
但纵观一生，34岁的苯妮感到无根可依，她决定解开生存之秘，这耗费了她三年时间。
The answer varies according to time and place of origin.
不同的年代，不同的出生地的人对这个问题有不同的答案。
However, in real time, the universe will appear to begin at the Big Bang, "Hawking said, referring to the explosion thought to be at the origin of the universe."
然而，在真实时间概念中，宇宙显得像是从大爆炸开始的。
The origin of the custom is lost in the mists of time.
这种习俗的起源现已淹没在时间的迷雾中。
I heard on the radio the other day that the origin of the phrase "drunk as a Lord" came from a time when the aristocracy were the ones with the time and money to get boozy.
又有一天，我在广播里听到，“drunkasalord”(酩酊大醉)这一短语源于一个特定时期——在那时，贵族总是把时间和金钱花费在买醉上面。
Let's start from the present and backtrack the time line to the origin of lives.
让我们以现在为起点，随着时间轴回溯而去，直抵生命的原点。
The origin of the moon is virtually an open question at this time.
实际上，到现在为止，月球的起源还是个未解之谜。
Origin edge, edge thick edge light, we can not control. We can do, is when the karma of treasure that short time.
缘起缘灭，缘浓缘淡，不是我们能够控制的。我们能做到的，是在因缘际会的时侯好好的珍惜那短暂的时光。
Save your time to learn some stories on the origin of the Christmas tree.
腾出时间来听听有关圣诞树起源的故事吧！
There can be no doubt that its origin is everywhere referable to that early time of struggle and necessity which we have been contemplating.
毫无疑问它的起源是在任何地方都归因于我们探稽过的早期的竞争和必需。
Let's guess an origin time of 10 seconds, measured on the same clock that made the time scale at the bottom of the figure and timed the seismograms.
让我们猜测地震的起源时间为10秒，在同一个钟上测量，使得时间刻度在图表的底部，让地震图同步时控。
Accordingly, parapsychologists indicate that "Memory Power" is coming down from time immemorial even before the origin of man.
因此，前卫的心理学家表明“记忆能力”是从远古而来的甚至在人类的起源之前。
The natural season, primeval faith and social life cadence are three element which came into being the time ideal of demos from origin of time consciousness.
从民众时间意识的起源上看，自然时序、原始宗教信仰以及社会生活节奏是形成民众时间观念的三大要素。
The natural season, primeval faith and social life cadence are three element which came into being the time ideal of demos from origin of time consciousness.
从民众时间意识的起源上看，自然时序、原始宗教信仰以及社会生活节奏是形成民众时间观念的三大要素。
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