群落交错区,ecotone英语短句,例句大全

群落交错区,ecotone
1)ecotone[英]['i:k?t?un][美]['ik?ton]群落交错区
1.Similar to ecosystems,marketing system (MS) is the ecotone of an enterprise and its environment.与生态系统类似,营销系统是企业与其环境形成的“群落交错区”。
2.The effects of vertical changes in the vegetation characteristics on the vertical flow velocity distribution were studied in a natural wetland ecotone modeled by shrubs mounted in a flume with five velocity profile measurements in the longitudinal direction.为研究天然湿地灌木植被群落交错区植被特征参数垂向变化对水流流速垂向分布的影响,进行了室内实验。

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.The delimitation of stands within ecotons generally gives on difficulties.在群落交错区范围内，通常划定群落片段的边界并不太困难。
3.The Research of the Structure of Community on the Ecotone between Forest and Swamp in the Mudanjiang Forest Region;牡丹江林区森林/沼泽交错带群落结构特征研究
4.Study on the Features of Soil Animals Community in the Ecotone of Grassland and Farmland in the Middle Area of Inner Mongolia;内蒙古中部农牧交错区土壤动物群落特征研究
5.The Research of Community Biomasses on the Ecotones between Forests and Swamps in the Mudanjiang Forest Region;牡丹江林区森林/沼泽交错群落生物量的研究
6.Study on Coummnity Ecology in Ecotone between Daxing an Mountain and Xiaoxing an Mountain;大、小兴安岭植被交错区群落生态学研究
7.The Research of the Distribution Patters of Plant Biodiversity on the Ecotone between Forest and Swamp in the Mudanjiang Forest Region;牡丹江林区森林/沼泽交错群落植物多样性分布格局研究
8.The Dynamic Study on the Plant Community of Wulingshan Natural Reserve between Middle and Lower Mountain Ectone during Its Embryoism Stage of Cutting Succession;雾灵山自然保护区中低山森林交错带采伐演替初期阶段植物群落动态研究
9.Studies on Ecological Characteristics of Larix Chinensis Communities Ecotone;太白红杉群落交错带生态学特性的研究
10.The Animal Community Structure and Diversity in Forest-steppe Ecotone;森林—草原交错带动物群落结构与多样性研究
11.Community stability of deserts vegetation at Fukang oasis-Desert ecotone;阜康绿洲-荒漠交错带荒漠植被群落稳定性
12.Analysis on Vegetation Characteristics of Activating Sanddunes in the Oasis-desert Ecotone绿洲—荒漠交错带活化沙丘的植物群落特征分析
13.Study on space evolvement mechanism of grassland and field community in ecotone between agriculture and animal husbandry in north China华北农牧交错带草原—农田群落空间演变机制的研究
14.Study on the Structures and Diversities of Soil Arthropod Community in the Forest-steppe Ecotone;森林—草原交错带土壤节肢动物群落结构及多样性研究
15.Study on Variation of Landscape Spatial Pattern and Plant Species Diversity in Forest-steppe Ecotone;森林草原交错带景观格局梯度变化及植物群落多样性的研究
16.The Study on the Structures and Diversities of Bird Communtiy in Different Landscapes at Forest-steppe Ecotone;森林草原交错带不同景观下鸟类群落结构与多样性研究
17.Studies on the Arthropod Community Structure and Diversity in the Forest-steppe Ectone;森林草原交错带节肢动物群落组成与多样性的研究
18.Using Artificial Community of Phragmites Australis to Ecologically Restore the Land/Inland Water Ecotone in Subtropical Area人工构建芦苇群落修复亚热带水陆交错带的生态实验研究

延伸阅读

交错环和交错代数交错环和交错代数alternative rings and algebras　　交错环和交错代数1 aitettla幼犯d雌s叨d川邵b”.;助‘T印.叮娜助砚”山田叨皿叨，曦讨J 孪拳所(al temative ring)是指每两个元素都生成一个结合子环的环;孪考华熬(al ter”ativeai二玩a)是(线性)代数并且是交错环.根据E.Artin的一个定理，所有交错环的类由如下一组等式定义: (习)y”x切)(右交错性); (xx)y二x(却)(左交错性).于是，交错环形成一个簇.在这种环里，结合子(ass呱ator)(结合性的亏量) (x，少，:)=(xy卜一x恤)是其自变元的一个斜对称〔交错)函数，这个事实表明使用术语“交错环”是合理的. 交错环的第一个例子是Ca尹ey数(Caylcy num-悦巧)，它作成一个交错除环(幻忱n犯ti说s处阴一几城)或交错体，即有单位元的交错环且对于任意b和a笋0，方程ax=b和ya=b有唯一的解.交错除环在射影平面的理论中起着实质性的作用，这是因为一个射影平面是一个Motlfa飞平面(Mdufangp场能)(即关于某一直线的平移平面)，当且仅当其三元环的任何坐标化是交错除环.在一个有单位元的环R中，如果每个非零元素均可逆且对任意a，b〔R均有等式a一’(ab)二乙(或者，(b a)a一’=b)，则R是交错除环.任何交错除环或者是结合的，或者是其中心上的Ca洲ey一Di改50.代数(Qyley-众汰阳n爽灼ra). 每个单交错环也或者是结合环，或者是其中心上的Cayley一Di由on代数(在这种情形下，此代数未必是体).结合环和本原交错环都被Cayley·Di山on代数所穷尽.所有素交错环R(如果3R护0)或是结合环，或是Cayley一Dickson环. 在相似的条件下，交错环的许多性质本质上不同于结合环.例如，如果R是交错环，A和B是其右理想，则其积月丑未必是右理想，即使A是双边理想也如此.但是，两个双边理想的积仍是双边理想.交错环与结合环的差异也强烈地体现在这样的事实之中:由于括号放的位置不同，元素的积或是零或非零，从而交错环有各种幂零性.通常在交错环中使用如下几种幕零性:可解性(s olvabilit刃(环R称为具有指数m的可解子(s ulvable ringl如果存在自然数。