宇宙尘埃

The not homogeneous dust generates cosmic asymmetries: galaxies and other phenomena.

非同质化的尘埃带来了宇宙的不对称性，包括星系与天象。

Of course, that string is a cosmic trail of gas, dust, and stars about 22,000 light-years long.

当然，连成串的线是一道由气体，尘埃和恒星组成的宇宙潮汐尾，大约有2.2万光年长。

A cosmic bubble of gas and dust, RCW 79 has grown to about 70 light-years in diameter, blown by the winds and radiation from hot young stars.

RCW79，一个由气体和尘埃组成的宇宙气泡，在星风的吹动和炽热年轻恒星的辐射的影响下，它的半径已经扩展到了大约70光年。

A sprawling island universe, IC 342 would otherwise be a prominent galaxy in our night sky, but it is almost hidden from view behind the veil of stars, gas and dust clouds in the plane of our Milky Way galaxy.

IC 342这个幅源广阔的宇宙岛，应该会是我们夜空中一个很显著的星系，但在我们银河系盘面上的恒星、云气和尘埃的遮掩下，反而几乎隐不可见。

But a bright yellow nucleus, dark winding dustlanes, gorgeous blue spiral arms and star clusters are recorded in this stunning telescopic digital mosaic of the nearby island universe.

但在这张近邻宇宙岛漂亮的数码拼接图像中，可以清晰看到明亮的黄色核心、蜿蜒的黑色尘埃带、灿烂的蓝色旋臂和星团。

But a bright yellow nucleus, dark winding dust lanes, gorgeous blue spiral arms and star clusters are recorded in this stunning telescopic digital mosaic of the nearby island universe.

但是这张令人兴奋的用望远镜拍摄的最近宇宙岛的数字拼接图像却记录下了一个黄色的亮核、暗淡的旋涡尘埃带、美丽的蓝色旋臂和星团。

First swept up in 1783 by mathematician and astronomer Caroline Herschel, the dusty island universe lies a mere 10 million light-years away in the southern constellation Sculptor.

在1783年首先被数学家和天文学家卡洛琳赫歇耳发现，尘埃岛宇宙位于仅仅1000万光年之外的南方星座—玉夫座。

You did not exist. You were only scattered molecular stardust.

你只不过是散落在宇宙中的一个分子大小的星际尘埃罢了。

Our planet is a lonely speck in the great enveloping cosmic dark.

我们的星球是宇宙无边的黑暗中一颗孤独的尘埃。

But ha also finds some fascinating, admirable, and maddening characters who have pursued the truth about extraterrestrial life: Cad Sagan, the brilliant astronomer who brought the cosmos to the masses; Dan Goldin the cantankerous head of NASA who still believes in the dream of the Space Age; Henry Harris, a former Las Vegas lounge singer who is assigned the job of figuring out how to get a spaceship to Alpha Centauri; and various and sundry ufologists, experiencers, spiritualists, and channelers for whom the aliens are an ever-present reality.

要想理性的来看待外星生物，首先我们必须搞清我们到底是谁，为什么存在，流淌在我们细胞中用了四十亿年才完成的进化史到底意味着什么。作者要向我们传达的信息是：能在这个充斥着岩石，气体和尘埃的宇宙中做有感知的人真棒---人是可以幻想的。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。