查询词典 galactic

It is found that for strong Lyman α absorption lines 〓 galactic haloes and satellites can explain～20 per cent and 40 per cent of the line number density of the Quasar Absorption Line Key Project respectively.

我们给出了半解析模型并做了蒙特卡罗模拟，我们考虑了三种主要的吸收成分：星系的气体晕、旋涡星系的盘、以及大星系周围的卫星星系。

English name of Shan Liulan is " accipitral grass ", because the person previously believes: The white of excretive of cauline ministry place that eagle had it namely is galactic, just have good vision.

山柳兰的英文名称是「鹰之草」，因为以前的人相信：老鹰就是吃了它的茎部所分泌的白色乳汁，才具有良好的视力。

Active Galactic Nucleus have been an important branch and one of the most active frontiers in the field of modern astrophysics. It is related to the most fundamental problems in astrophysics .

活动星系核是现代天体物理学研究的重大前沿课题，涉及到天体物理学中最基本的问题。

But, unlike the black hole at the centre of our Milky Way, the million-solar-mass black hole inside NGC 4945 is an Active Galactic Nucleus that is frantically consuming any surrounding matter, and so releasing tremendous amounts of energy.

但与银河系核心的黑洞不同，NGC 4945中数百万太阳质量的超级黑洞正在疯狂地吞噬周围的物质、并释放极为巨大的能量——是个活跃星系核。

Some mergers (including NGC 2623) can result in an active galactic nucleus,where one of the supermassive black holes found at the centres of the two original galaxies is stirred into action.

包括NGC 2623在内的某些碰撞碰撞星系会形成活动星系核，形成这个过程一般会在两个原始星系的中心发现超级黑洞。

Each galaxy also contains an active galactic nucleus, evidence that the chaos is allowing gas to fall into the regions around central black holes as well as feeding starbursts.

每一个星系都包含一活动星系核，有证据表明混乱正在使气体落入中心黑洞周围的区域，同时也为星暴提供着给养。

First,current research of kinematic properties of the Galaxy as well as their latest results are reviewed.Second,an updated,most complete catalogue of 209 open clusters with galactic longitude,galactic latitude,heliocentric distance,age,absolute proper motion and radial velocity data as well as 41 open cluster only with radial velociyty data is compiled.Also,the spatial distribution of the open cluster system is studied.

首先，本文综述了银河系运动学性质的研究现状，总结了历年来银河系运动学参数的研究结果；其次，本文在对最新疏散星团观测资料和文献进行调研和整理的基础上，编纂了迄今最完整的同时具备银经、银纬、日心距、年龄、绝对自行与视向速度的209个疏散星团样本以及只有视向速度资料的41个疏散星团样本。

The Galactic Alignment is the alignment of the December solstice sun with the Galactic equator.

银河对齐是赤道排列与银河12月冬至太阳。

As seen from Earth, the moon crossed the galactic equator last night. When the moon exits Taurus to enter Gemini, the moon appears to cross the galactic equator going from south to north.

从地球上看，昨晚月球穿过了银道面，由金牛座运行到双子座前面，也可以看作是月球从银道面的南面穿到了北面。

The 29 F globular clusters in the galaxy are selected as samples in my paper (The space distribution and motional orbits of the samples have not been researched in detail before.).According to the basic parameters: azimuth coordinates, distances from the sun, radial velocities and proper motions of sample clusters, the initial positions and velocities of the samples are reduced using the galactic coordinates, and their orbits are integrated by numerical method for three different galactic gravitational potential models.

本文选用银河系中29个累积光谱型为F型的球状星团作为样本(这些样本星团的空间分布和运动特征都没有被详细地讨论过)，根据它们的基本资料：方位坐标、日心距、视向速度，绝对自行等参数，归算处理得出了各样本星团的空间分布和运动速度。

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。