代群特征,characteristics of the generation and group
1)characteristics of the generation and group代群特征
2)character of algebraic group代数群的特征[标]
3)Community characteristic群落特征
1.A study on the comparision of community characteristic between different age Metasequoia glyptostroboides plantations;不同林龄水杉人工林群落特征比较研究
2.The protect countermeasure of wetland based on winter migrant bird s community characteristic;基于群落特征的湿地候鸟保护对策
3.Study on Achnatherum splendens community characteristics and species diversity around Qinghai Lake;青海湖地区芨芨草群落特征及其物种多样性研究
英文短句/例句
1.A transitional zone between two communities containing the characteristic species of each.群落交错区两个群落之间的交错地带，同时带两个群落特征的物种
2.Influence of Grazing on Community Characteristic and Reproduction Traits of Plant Population;放牧对草原群落特征及种群繁殖特性的影响
3.Studies on Avian Community of Shanghai and Planning of conservation;上海鸟类群落特征及其保护规划研究
4.Studies on Characters of Plant Communities in the Greenbelt of Wuhu City Parks;芜湖城市公园绿地植物群落特征研究
5.The Analysis on Framework of Urban Green & Plant Community Characters of Luohe City漯河市绿地结构与植物群落特征分析
6.A Study on the Community Characteristics of Evergreen Broad-leaved Forest in Dagangshan Mountains of Jiangxi Province江西大岗山常绿阔叶林群落特征研究
7.Study on Plant Community Feature in Nanjing Temple Garden南京地区寺庙园林植物群落特征研究
8.Relationships between Eigenvalues of Arthropod Community in Licorice Farmland甘草田节肢动物群落特征值关系研究
9.Preliminary Study on Community Characteristics of Rosa Xanthina黄刺玫群落特征及种群分布格局的研究
10.Characteristics of soil fauna community in forest floor at different climate zone,China我国重要森林群落凋落物层土壤动物群落生态特征
11.One of the most characteristic species in a biotic community.在生物群落中最有特征的别类之一
12.The Ecological Characteristics of Fish Communities in the Yangtze Estuarine Wetlands, China;长江河口湿地鱼类群落的生态学特征
13.Characteristics of Natural Regeneration of Sabina Vulgaris Community in Mu Us Sandland;毛乌素沙地臭柏群落的天然更新特征
14.Study on the Ecological Characteristics of Castanopsis Communities in Jinggang Mountain in Jiangxi;江西井冈山栲属群落生态学特征研究
15.Study on Community Structure Characteristics of Yunwu Mountain;云雾山天然草地群落结构特征的研究
16.Analysis of Constructional Characteristic of Quercus Broadleaved Mixed Forest Community in Qingyang County青阳县栎类阔叶林群落结构特征研究
position and structure of plant communities in the greenspace of Around-Hefei Park合肥环城公园绿地植物群落结构特征
munity Structure Characteristics of Ceratopteris thalictroides at Li Shi-zhen"s Country李时珍故里的水蕨群落结构基本特征
相关短句/例句
character of algebraic group代数群的特征[标]
3)Community characteristic群落特征
1.A study on the comparision of community characteristic between different age Metasequoia glyptostroboides plantations;不同林龄水杉人工林群落特征比较研究
2.The protect countermeasure of wetland based on winter migrant bird s community characteristic;基于群落特征的湿地候鸟保护对策
3.Study on Achnatherum splendens community characteristics and species diversity around Qinghai Lake;青海湖地区芨芨草群落特征及其物种多样性研究
4)community characteristics群落特征
1.Thecommunity characteristics of soil protozoa with pollution of compound sewage from Moguhu;新疆石河子市蘑菇湖混合污水污染土壤中原生动物的群落特征
parisons among soil collembolacommunity characteristics in relation to different vegetation restoration treatments in the moderate degraded grasslands in the Songnen Plain of Northeast China;松嫩草原中度退化草地不同植被恢复方式下土壤跳虫群落特征比较
3.Studies oncommunity characteristics of Pinus tabulaeformis and Quercus mongolica forest and its species diversity of Dongling district in Shenyang;沈阳东陵区油松栎林群落特征及物种多样性研究
5)community structure群落特征
1.Plant-diversity and Community Structure of Primordial Wetland in Hilly Region in Northeastern China;东北山地沼泽湿地植物群落特征及植物多样性研究
2.Then thecommunity structure of these 2 species was investigated.对这两种植物的群落特征进行调查发现,这两种植物具有相似的生态适应性,可共同生长于同一生境中,为害深圳市多种本地植物,对低矮乔木、灌木和草本植物为害严重,对高大乔木的为害不明显。
6)community character群落特征
1.Study on plantcommunity characters and soil properties of Artemisia firigida grasslands after different enclosing times;不同围栏年限冷蒿草原群落特征与土壤特性变化的研究
2.Studies on Water and Community Character of Caragana Intermedia Grassland in the East Desert of Yellow River in Ningxia;宁夏河东沙地不同密度柠条灌丛草地水分与群落特征的研究
3.The result shown that thecommunity character depends on the degree of disturb,the Ⅳ(importance value)of Stipa glareosa increased under middle level disturb and decreased under heavy disturb, at the same time the superiorspice is became Christolea crassifolia.通过对临时公路干扰下西藏阿里地区温性荒漠草原草地的调查研究,从群落特征、多样性、生产能力和有性更新能力几个方面分析其对干扰的响应和作用规律。
延伸阅读
代数群代数群algebraic group代数群工吨。b面。gn扣p;a汀“6pa明“‘Ka，‘’py皿al具有代数簇(al罗braie variety)结构的群G，其中乘法“:G XG，G以及反演映射，:G~G都是代数簇的正则映射‘夸射(morPh‘m比当一个代数群的基础代数簇以及态射拼和，都定义在k一上时，这个代数群称为定义在域丸上的.这时，簇G的人有理点集是一个(抽象)群，记为G休)·代数群称为诈溥的(conne。ted)，如果它的代数簇是连通的.代数群的维数(dimension Of an al罗brai。毋oup)就是它的代数簇的维数.以下只考虑连通代数群.代数群G的子群H称为尽攀的(al罗braic)，如果它是代数簇G的闭子簇·对这样的子群，其(左或右)陪集空间可利用万有性质而自然地赋予代数簇的结构(见代数群的商空间(quotientsPace)).如果子群H也是正规的则商群G/H关于这个结构是一个代数群、并称为华攀哪群(al罗 braic quo-讹nt grouP).代数群的同态伞:G一J称为代数的(al罗bralc)，如果价是这个代数簇的态射;如果价定义在k上，则称为k同态伙一hom叨lor曲ism).可类似地定义代数群的人同构戈k一isomorPhism).代数群的例:一般线性群GL(n，k)(系数取自固定的代数闭域k的所有n阶可逆矩阵的群厂三角矩阵的群;椭目曲线代IliPticcur代).代数群有两种性质完全不同的主要类型:A悦l簇(Abelian variety、和线性代数群(linear al罗braiegrouP).特殊群的类型完全由其簇的性质确定.如果代数簇是完全的，这个代数群就称为Abel簇.代数群称为线性的，如果它同构于一般线性群的代数子群.代数群是线性的当且仅当它的代数簇是仿射的.这两类代数群有平凡交:如果一个代数群既是Abel簇又是线性群，则它是单位元群.任意代数群的研究很大程度上归结为A吮l簇和线性群的研究.特别地，一个任意代数群包含唯一的正规线性代数子群H，使商群G/H是Abel簇({All)、既非线性代数群又非Abel簇的代数群的许多例子是由带奇点的代数曲线的广义J即喃i簇(Jacobi variety)理论给出的(131).代数群类的自然推广就是群概形(group sdieme)的概念.
