陨星

It is generally concluded from the appearance of their heavily cratered surfaces that they have been subjected to bombardment by large meteoroids during their geological history.

拿月亮和火星来说，一般都从它们表面严重的陨石坑得出结论：它们在其地质进化过程中遭到过巨大的陨星的撞击。

By the sun, 8 big planets (originally have the nine planets, because pluto is rejected for short planet), 66 satellites (original 67, pluto's satellite is rejected) as well as the innumerable planetoids, the comet and composes.

由太阳、8颗大行星（原先有九大行星，因为冥王星被剔除为矮行星）、66颗卫星（原有67颗，冥王星的卫星被剔除）以及无数的小行星、彗星及陨星组成的。

Looks by far, sees only these grotesque planetoids, some elephant potato, some elephant duck egg, but also some simply indescribable, in which biggest diameter almost has 890 kilometers, but the smallest diameter on several centimeters sizes, is also similar with the small bird's egg, in vast outer space naked eye nearly blind, obviously between these planetoids has the huge difference; Luckily this circles the planetoid which the sun moves, besides appearance irregular, knows one's place extremely, moreover the ingredient quite is unitary, majority all is the lithical meteor, they then receive the outside space powerful disturbance, or suffers other photostar hit in the situation, only then has the possibility the star to cause the damage to peripheral other solar system in.

远远望去，只见这些奇形怪状的小行星，有的像土豆，有的像鸭蛋，还有的简直无法形容，其中最大的直径差不多有八九十千米，而最小的直径也就几厘米大小，跟小鸟蛋差不多，在浩瀚的太空中肉眼几乎看不到，可见这些小行星之间存在着巨大的差异；幸好这一圈绕太阳运行的小行星，除了模样参差不齐之外，还是非常安分守己的，而且成分比较单一，大多数都是石质陨星，它们只有受到外界空间强有力的干扰，或遭受其他星体撞击的情况下，才有可能对周边的其它太阳系内星球造成伤害。

A mineral form of vitreous or glassy silica; formed by the melting of quartz sand.

一种玻璃质或象玻璃的硅石矿物，由在闪电或陨星的作用下熔化的石英砂构成。

Dust of a star fallen from the sky.

一把陨星的尘埃

To be nominally but not actually independent; no one actually saw the shark; large meteorites actually come from the asteroid belt.

是名义上而不是真正地独立；没有人真正看到过鲨鱼；大陨星其实来自小行星带。

"For the first time, we're really building a bridge between what we observe in the meteorites and what astrophysicists like Shu are telling us."

在这二个非常特殊的陨星中，我们最后有了直接的证据，证明岩石中的一部分确实在很短的时间内从一些很热的地方转移到一些很冷的地方&，他肯定道&这是一项非常重要的研究。

Inaugurating the era of space exploration for the United States, Explorer I was a thirty pound satellite that carried instruments to measure temperatures, and micrometeorite impacts, along with an experiment designed by James A.

开辟美国太空探索的新纪元的探测器Ⅰ是一枚重30磅的卫星，它携带了测量温度和微陨星碰撞的仪器，还有一个由James A。

A cape of northwest Greenland in northern Baffin Bay. It was used as an exploration base by Robert E.

约克角：格林兰岛西北一海角，位于巴芬湾北部，在此地发现著名铁陨星的罗伯特·E。

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。