彗星

Four billion years ago, asteroids and comets rained down on our planet with such ferocity that scientists have labeled the era the "Hadean "--literally, hell on Earth.

40亿年以前，小行星和彗星犹如雨点一般密集地砸在地球上，撞击极为猛烈，科学家们管这个时代叫做&冥古代&，顾名思义就是地球上的地狱时代。

Put another way, it represents a myopic area across from a hyperopic area. In a point spread function map, coma may look like a comet -- hence the name.

用另外一种方法说，它代表了和远视区相对的近视区（在点源扩散函数地图中，彗差就像它的名字一样，看起来有点象彗星）。

Scientists have no way of knowing whether life ever existed on any comets or planets orbiting this particular star, known as CW Leonis and located some 3,000 trillion miles (4, 800 trillion kilometers) from Earth in the constellation Leo.

科学家还无法知道在这颗恒星周围运行的彗星和行星上是否曾经有生命存在。该恒星是狮子座的CW星，距地球大约3000万亿英里(4800万亿公里)。

Scientists have no way of knowing whether life ever existed onany comets or planets orbiting this particular star,known asCW Leonis and located some 3,000 trillion miles (4,800trillion kilometers)from Earth in the constellation Leo.

该恒星是狮子座的CW星，距地球大约3000万亿英里（4800万亿公里），科学家还无法知道在这颗恒星周围运行的彗星和行星上是否曾经有生命存在。

As the Earth-bound scientists toil, Rosetta itself will continue to zoom across our Solar System, next swooping again by the Earth in 2009 November, flying by asteroid 21 Lutetia in 2010 July, and finally landing on comet Churyumov-Gerasimenko in 2014 November.

当科学家在忙碌的同时，罗塞塔号也将继续在太阳系中飞驰，预定于2009年11月越过地球、2010年7月飞越小行星21Lutetia ，并于2014年11月最终降落在 Churyumov-Gerasimenko 彗星之上。

Methods Through comet assay and observing mutation frequency of HPRT gene, frequencies of micronuclei and multinucleate cells, chromosome analysis, we researched the hereditary toxicity of DU and protection of DMSO.

采用彗星实验、HPRT基因突变检测、微核多核及染色体分析研究贫铀的遗传毒性作用及DMSO对其毒性的抑制作用。

Here, the accepted animal cell protocol was modified to adapt it to plant cells and the sensitivity to UV-B induced DNA damage was investigated in young and mature leaves of Murraya panicuata.

本研究通过对动物细胞彗星检测方法的改进，利用植物细胞原生质体作为材料，研究了不同发育期九里香叶片对UV-B诱导的DNA损伤的敏感性差异。

Objective To detect the DNA damage of the nurses occupationally exposed to anticancer drugs and to assess the exposure level using Comet assay.

目的用彗星试验检测接触抗癌药物护士的DNA损伤。

And so Octavian could present this comet as Caesar who indeed was a god.

因此屋大维把这颗彗星命名为凯撒。这位真正的神。

Now transmuted, we swiftly escape, as Nature escapes; We are Nature—long have we been absent, but now we return; We become plants, leaves, foliage, roots, bark; We are bedded in the ground—we are rocks; We are oaks—we grow in the openings side by side; We browse—we are two among the wild herds, spontaneous as any; We are two fishes swimming in the sea together; We are what the locust blossoms are—we drop scent around the lanes, mornings and evenings; We are also the coarse smut of beasts, vegetables, minerals; We are two predatory hawks—we soar above, and look down; We are two resplendent suns—we it is who balance ourselves, orbic and stellar—we are as two comets; We prowl fang'd and four-footed in the woods—we spring on prey; We are two clouds, forenoons and afternoons, driving overhead; We are seas mingling—we are two of those cheerful waves, rolling over each other, and interwetting each other; We are what the atmosphere is, transparent, receptive, pervious, impervious: We are snow, rain, cold, darkness—we are each product and influence of the globe; We have circled and circled till we have arrived home again—we two have; We have voided all but freedom, and all but our own joy.

我俩，我们被愚弄了这么久我俩，我们被愚弄了这么久，可现在变了，我们迅速逃走，像大自然一样逃走，我们就是大自然，我们离开这里已经很久，但是如今回来了，我们变成植物、树干、树叶、树根和树皮，我们被安置在地里、我们是岩石，我们是橡树，我们并排地生长在林中的空地，我们吃草，我们是野牛群中的两只，如大家一样自然，我们是在海中一起游泳的两条鱼，我们是刺槐的花朵，我们早晚在小巷周围散发香气，我们也是兽类、植物、矿物的粗劣斑点，我们是两只肉食的苍鹰，我们翱翔在高空，俯视下面，我们是两个灿烂的太阳，我们在像星球般平衡着自己，我们是两颗彗星，我们张牙舞爪地在树林巾梭巡，我们向猎物跃进，我们是午前午后在上空奔驰的两朵云，我们是交混的海洋，我们是两个欢乐的浪头，在互相浇泼和连环翻滚，我们是大气、明澈而善于接受，有时能穿透，有时不能，我们是冰雪，雨水，寒冷，黑暗，我们是地球上的每种势力和产品，我们绕了一圈又一圈，最后我们又回到家里，我俩，我们避免了—切，除了自由和我们自己的欢欣。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。