在今天结束之前，我想我要提到一个生物学事件，它是冬春过渡的一部分，如果你有耐心的话，你可以去外面观察。
Before we close today, I thought I'd mention a biological event that's a part of the transition from winter to spring, something you can go outside and watch if you have some patience.
当我们了解了更多关于人类细胞的DNA，以及它是如何控制细胞的生长和发育的，那么也许我们可以解释一个非常重要的观察结果。
As we learn more about the DNA in human cells and how it controls the growth and development of cells, then maybe we can explain a very important observation.
他们碰到一个团块或其他东西，然后将其围起来，观察它是否更容易消化。
They come upon a clump or something, and they sort a circle of it to see whether it's more digestible.
在智利阿塔卡玛沙漠，全新的国际天文观察站正在建设中，它是射电天文学的另一个最尖端项目。
On another cutting edge of radio astronomy is a brand new international observatory that's under construction in Chile's Atacama Desert.
一旦天文学家知道一个太阳系外行星的大小，并对它的位置了解的足够精确的话，他们就可以求助于气候模型师，他们可以创造虚拟的大气，并且观察它是如何运转的。
Once astronomers know an exoplanet's size and location with reasonable accuracy, they can turn it over to climate modelers who can create a virtual atmosphere and see how it might behave.
它是一个布满星星的圆盘，从一端到另一端跨越了120,000光年。你可以用肉眼，也可以通过光学望远镜观察银河系。
From end to end, the Milky Way's starry disk, observable with the naked eye and through optical telescopes, spans 120, 000 light-years.
使用者滚动拉动光标来“重演”一个海浪，观察它是怎样形成的。
Users can move a slider to “replay” a wave, to see how it reached its current form.
如果观察JAXM，您会发现它是对http库一个很简陋的包装。
If you look into JAXM, you will find that it is a thin wrapper around an HTTP library.
安娜·多恩豪斯正在观察一个每边长一英尺的纸板巢箱，它是大约一百只欧洲岩蚁的“家”。
Anna Dornhaus is peering into a cardboard nest box only an inch on a side, at a “family” of 100 or so European rock ants.
一个三十岁年龄的天体据信是人类观察到的最年轻的黑洞，它是M 100星系里名为SN 1979c的超新星的余烬，距离地球大约5000万光年，如上图所示。
A 30-year-old object believed to be the youngest black hole ever seen, is a remnant of SN 1979c, a supernova in the galaxy M100, shown here, approximately 50 million light-years from Earth.
有时价值定位通过营销活动建立，有时通过经营的观察，而有的时候因为它是在一个高速增长的市场中。
Sometimes the value proposition is created by a marketing campaign, sometimes by the look of an operation, and sometimes because it is in a rapidly growing market.
它是第一个真正的全球性超媒体网络，改变了人们观察和创建信息的方法。
It is the first truly global hypermedia network, changed the observation of information and the creation of the method.
在先前的试验中也测试过它的安全性，但没有一个实验被设计来观察它是否也是有效的。
It, too, had been tested for safety in previous trials, but none of those trials were designed to see if it was also efficacious.
它是突然地在我的几个营幕中的一个，在进行时我有几个去观察多种的穿梭机行动。
It suddenly was on one of my several monitors. I had several to observe various shuttle operations while in progress.
如果从专业的角度看，教师观察行为是教师的基本行为之一，它是指教师在一个意义单元内搜集有意义的信息的过程。
From the professional view, the observing behavior of teacher is one of the basic behaviors of teacher, which means the course of collecting meaningful information in a meaningful unit by teacher.
它是通过把一个细管放进病人的动脉来观察的。
It involves threading a thin tube into a patient's arteries.
但仔细观察，你会发现它是一个超轻型推车，来准备继续前进！
But upon closer inspection, you'll find it's a super light stroller that comes ready to move!
任何观察到的收入增长率，因为经济仍然汇流实现其稳定状态，或因为它是在转型，从一个稳定状态到另一个状态。
Any observed income growth per capita occurs because the economy is still converging towards its steady state, or because it is in transition from one steady state to another.
这并不是一个结果研究，它是观察斑块体积的中间终点的研究。
This was not an outcomes study. This was a study looking at an intermediate endpoint which is plaque volume.
它是伐木场和农场区域中的一个疗养地并且是洛威尔观察所（建于1894年）的所在地。
It is a health resort in a lumbering and ranching area and the site of Lowell Observatory (founded 1894). Population, 45,857.
它是伐木场和农场区域中的一个疗养地并且是洛威尔观察所（建于1894年）的所在地。
It is a health resort in a lumbering and ranching area and the site of Lowell Observatory (founded 1894). Population, 45,857.
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