查询词典 stellar cluster

Cluster initiatives are involved in a broad range of activities.In fact,two-thirds of allcluster initiatives surveyed had activities in at least five out of six broad activity areas(research/networking,policy lobbying,commercial cooperation,education/training,innovation/technology,and investment attraction).This seems consistent with a view ofcluster-based policy as a prioritization process across many different policies rather thanas new type of program focused only on,say,networking.Interestingly,we find thisbreadth in activities even in relatively young cluster initiatives.Cluster initiatives seem toincrease the intensity of their activities over time,not necessarily the number of parallel efforts.

集群举措，是涉及范围广泛的activities.in事实上，有三分之二的allcluster举措被调查活动中至少有 5个出六个广泛的活动领域（研究/网络，政策的游说，商业合作，教育/培训，创新/技术，并吸引投资），这样的说法似乎并不一致，以期ofcluster为基础的政策，作为一个优先次序的过程中遇到许多不同的政策，而不是thanas新类型的节目，只是集中，也就是说， networking.interestingly ，我们发现thisbreadth在活动，即使在相对年轻集群initiatives.cluster举措似乎toincrease强度，他们的活动随着时间的推移，并不一定数目的平行努力。

Explanation: M4 is a globular cluster visible in dark skies about one degree west of the bright star Antares in the constellation Scorpius. M4 is perhaps the closest globular cluster at 7000 light years, meaning that we see M4 only as it was 7000 years ago, near the dawn of recorded human history. Although containing hundreds of thousands of stars and spanning over 50 light-years, M4 is one of the smallest and sparsest globular clusters known. A particularly unusual aspect for a globular cluster is M4's central bar of stars.

M4是一个肉眼可见的球状星团，位于天蝎座心宿二的东面约一度位置。M4可能是最靠近我们的球状星团距离约7000光年，这意味着我们看到的是7000年以前的M4，即人类历史有文字记载的开始阶段，它跨越50光年包含有数10万颗恒星。M4是已知在尺度及包含恒星数量上最小的球状星团。M4独特之处是它中心的棒状结构。

First, the character clustering algorithm regards the character as our features and then it can cluster these sentences of our target words to the correct group without any other resources. The average precision is 66.1%. Second, in the concept clustering algorithm of the aggregate computing, we use HowNet as the knowledge base of our feature words and obtain the concepts of these words. We cluster the sentences which have the same or similar concepts of the feature words into the same group. And then we can complement some lacks of the character clustering algorithm. The average precision is 72.3%. Third, regarding the concept clustering algorithm of the sememe distance, we use the sememe distance to compute its concept similarity. It improved similarity measure of the concept clustering algorithm of the aggregate computing. It achieves 81% average precision and gets better cluster quality.

词形分群演算法不受语料资源限制，能将词形相似且词义相近的词汇所属的句子分到同一群，经过人工验证，得到了66.1%的平均正确率；基於集合计算的概念分群演算法使用了知网做为撷取特徵词汇的知识库，透过知网取得词汇的概念，将具相同或相似概念的特徵词汇所属的句子分成同一群，补足词形分群演算法的不足，得到72.3%的平均正确率；基於义原距离的概念分群演算法则利用义原间的距离计算特徵概念的相似度，进一步改善了基於集合计算的概念分群演算法在相似度衡量的问题，得到81%的平均正确率，达到更好的分群效果。

Plates of globular cluster M3, taken with the 40cm refractor at Sheshan station of Shanghai Astronomical Observatory, are used by this work. The difference of epoch of these plates is up to 81years. The positions and absolute proper motions of 24 stars in ACT catalogue, which links with the Hipparcos Catalogue based on the International Celestial Reference System, are used as the reference frame. Using the central overlapping principle, the absolute proper motions of 534 stars in the region of about 100'×100' around the cluster are determined. After the membership determination of the stars which based on the data of proper motions, average absolute proper motion components for the cluster of -0.3±0.3 mas/yr in R.A.

本文使用上海天文台佘山40厘米折射望远镜拍摄的14张最长时间跨度为81年的球状星团M3底片的PDS扫描结果，使用与 Hipparcos星表相联系的基于国际大球惯性参考系的ACT星表中的 24颗恒星的位置和绝对自行为参考架，用中心重叠法进行天体测量归算，得到了这个星团中心附近100'×100'天区内534颗恒星的位置和绝对自行，并利用这些自行对成员概率进行了估算，得到这个星团的赤经方向绝对自行为- 0.3±0.3mas/yr，赤纬方向绝对自行为-3.1±0.3mas／yr。

The irregular galaxy NGC 1427A is a spectacular example of the resulting stellar rumble. Under the gravitational grasp of a large gang of galaxies, called the Fornax cluster, the small bluish galaxy is plunging headlong into the group at 600 kilometers per second or nearly 400 miles per second.

星系NGC 1427A就是这样的一个例子，在一个名为Fornax星群的一大群星系的引力场的作用下，这个小蓝星系正以600公里/秒（400英里/秒）的速度冲向星系群。

At the edge of a large molecular cloud in Monoceros, some 5,000 light years away, the petals of this rose are actually a stellar nursery whose lovely, symmetric shape is sculpted by the winds and radiation from its central cluster of hot young stars.

星云位于麒麟座巨大分子云的边缘，距离我们大约5，000光年远，而玫瑰的花瓣实际上就是一个恒星孕育场，而其可爱而对称的形状是由于中央年轻炽热恒星团发出的恒星风和放射线侵蚀而成。

Explanation: Dusty stellar nursery RCW 49 surrounds young star cluster Westerlund 2 in this remarkable composite skyscape from beyond the visible spectrum of light.

说明：在这张用不可见光波段拍摄的显著合成影像中，模糊恒星孕育场 RCW49包围着年轻星团 Westerlund 2。

Strickler believe they are seeing a case of stellar plasma theft by companion binary stars in the NGC 6397 cluster, approximately 7,200 light years away.

酷和共同作者雷切尔河克勒认为，他们所看到的情况恒星血浆盗窃同伴双星在6397星系群中，大约7200光年。

The dendrogram shoe that the 55 materials were divided into five class at the line L_1,the agnate No.4 was a class and matriline longwangmao was a class,the other three agnate and hybrids were regular cluster,only agnate No.1 and P6-N-4、P6-N-7、P6-N-8 etc.14 hybrids were cluster,show partial male type.

另由树状图得知在L_1处可将55份供试材料分成5大类，除父本4号与母本龙王帽各自成一类外，其余3个父本与杂交苗有规律的聚类在一起，但只有父本1号与P6-N-4、P6-N-7、P6-N-8等14个杂交苗聚类到了一起，表现出偏父型。

The paper supposed that cluster governance has multi- ple governance forms including network governance,market governance and hier- archy governance.Moreover there is"Double Network"consisting of economic network and social network in the organization of industrial cluster,which induce the"Mutual Embeddedness".

本文在阐释了网络治理内涵的基础上，提出集群治理具有以网络治理为主，市场治理、层级治理为辅的多元治理模式；产业集群组织内部存在经济网络和社会网络，该"双网络"引致"互嵌"机制。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。