查询词典 Oort cloud

Normal comets fall into the inner regions of the solar system from icy reservoirs in the distant Kuiper belt and Oort cloud.

通常来说，彗星来自距离遥远且冰天雪地的柯伊伯带和奥尔特星云然后掉入太阳系中的内层区域。

Even though the nebular material was ejected from the star many thousands of years ago, the close-in dust could be generated by collisions in a reservoir of objects analogous to our own solar system's Kuiper Belt or cometary Oort cloud.

虽然星云的物质在几千年前被抛射出去，星球附近的尘埃可能是附近的尘埃盘的碰撞所导致，有点类似於太阳系统的科伊伯带或是奥特云。

I suspect these occultation events are going to find Oort Cloud objects sooner.

我认为通过这些'掩星'事件，不久后将可发现奥特云里的物体。

Even though the nebular material was ejectedfrom the star many thousands of years ago, the close-in dust could begenerated by collisions in a reservoir of objects analogous to our ownsolar system's Kuiper Belt or cometary Oort cloud.

虽然星云的物质在几千年前被抛射出去，星球附近的尘埃可能是附近的尘埃盘的碰撞所导致，有点类似於太阳系统的科伊伯带或是奥特云。

"It's an interesting way to look for some sign of the Oort Cloud, which is very hard to do from the Earth," says Renu Malhotra of the University of Arizona in Tucson.

亚利桑那大学图森分校的瑞纽·曼赫塔说：&这是一种查看奥特云的一些迹象的有趣方法，从地球上很难做到这些。&

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。