By using PCA and correlation analysis methods,the relationship between the changes of aboveground biomass of Puccinellia tenuiflora population growing on the saline and alkaline grassland in Song-Nen and the changes of soil ecofactors was analysed with the passage of growing period of the plant.
采用通径系数分析和相关分析的方法，随着植物的生长期的推移，分析了生长在松嫩盐碱草地上的星星草种群地上生物量变化和土壤生态因子变化之间的关系。
For the moment let us describe the minor members that we are sure belong to the Local Group.
现在，我们来介绍一下明确属于本星系群的几个较小的成员星系。
low-cost satellite communication system
低成本卫星通信系统
Galaxies as a rule associate into orbiting clusters and groups.
星系通常围着（系）簇或群组而轨道绕行。
More homely galaxies, too, may be controlled by their starbursts.
较为普通的星系，同样有可能受制于星群爆发。
Most galaxies occur in pairs or in small multiple groups.
大多数星系成双或几个成一小群。
Benxi Qunxing Chemical Products Co., Ltd.
辽宁省本溪市群星化工制品有限责任公司
A cluster of stars smaller than a constellation.
星群，星座比星座小的一簇星星
A cyberjazz blend of alien voices, ambient textures and extraterrestrial grooves.
译：一种外星的声音，混合着本星系和外星系的神秘音符。。。
Normal matter in galaxy clusters is mostly in the form of hot gas and stars.
星系群中的常态物质大概是由热气团和星团所组成的。
They may, however, also be important in regulating the lives of the galaxies in which they occur.
但是，这些星群在调整其所在星系的生命方面也显得十分重要。
Now it seems that starbursts can. in their turn, nudge the galaxies they occur in.
目前一般认为，星群爆发能够反过来对所在星系产生作用。
It is not just that we, the Pleiadians, have come to assist; we are only one grouping from one star system.
它不仅是我们，昴宿星人来协助；我们只是一个恒星系统的一个族群。
Quantitative Characteristic of Puccinellia Tenuiflora Clone Populations in Different Habitats on the Songnen Plain of China;
松嫩平原不同生境星星草无性系种群的数量特征分析
This is a very large circular collection of stars and gas that surrounds our Milky Way galaxy.
这是一个围绕银河系的恒星及大气圈群体。
A team of scientists observed a group of galaxies that formed when two galaxy clusters smashed into each other.
一组科学家发现一批星系形成,两银河集群互撞。
RAPD Analysis on Cultivars or Lines of Loquat and Offspring Group of "DaWuxing";
枇杷品种（系）和“大五星”后代群体的RAPD分析
The Deployment and Retrieval Control of the Tethered Satellite Based on the PSO Algorithm
基于粒子群算法的绳系卫星展开与回收控制
Pulsar Coherent Dedispersion System Based on the Computer Cluster
基于计算机集群的脉冲星相干消色散系统研究