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地理分布

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There was no notable difference in avifaunal zoogeographical pattern of China before and after 30 years by cluster analysis. The accordance of present analysis and zoogeographical region division in Cheng(1976), Zhang(1991), and Cheng(1997)'s reflected long term stability in evolution of avifauna.

鸟类区系的动物地理分布格局聚类分析结果,在30年前后没有明显差异,和郑作新(1976),张荣祖(1991)以及郑作新等(1997)的动物地理区划结果一致,反映了鸟类区系演化的长期稳定性。

It accounts for more than 64% of species recorded in China. The study was the most comlplete , systematic work about birds in Yunnan and recorded the most species of birds in Yunnan at present. The recources status and geographical distribution of birds in Yunnan were deeply studied, and the characters and evolution tendency of avifauna in Yunan, geographical division of birds in Yunnan were discussed.

本项目通过系统的分类和区系研究工作,共描记云南鸟类848种(1074种和亚种),占中国记录鸟类种数的64%以上,是目前记录云南鸟类物种最多、最全面和最系统的工作;并在深入研究云南鸟类资源状况和地理分布的基础上,探讨了云南鸟类的区系特征及其演化趋势、三级地理区划。

Three centers of endemism were identified by overlapping distribution maps, namely the "Hengduanshan Mountain areas","Mountain areas in north Sichuan Province and Qinling as well as south Gansu Province", and "Taiwan Island".

在广泛搜集有关分布资料、对我国鸟类特有种的地理分布情况进行系统整理并建立数据库的基础上,运用GIS技术处理物种分布数据,研究了中国鸟类特有种的多样性及其分布格局。

On the basis of the above sedimentary research, combining the identification of well logging and seismic facies. The detailed research on the character and space-time evolvement of the lithofacies-paleogeography of Silurian-Devonian has been carvied out, and the research indicates that in the process of sedimentary evolvement, the character of lithofacies paleogeography is different in each phase, but it is succession.

在上述沉积相研究基础上,结合测井相、地震相的识别,对塔里木盆地志留-泥盆系岩相古地理特征及时空演化进行了详细研究,研究表明在志留-泥盆纪沉积演化过程中,岩相古地理分布特征在各个时期存在差异性,但在整个古地理演化过程中,又具有继承性。

The APW in summer is less than 25 mm which is the least limit value of monsoon areas.This means that Xinjiang is not affected by monsoon.The geographic distribution of APW is adverse with that of precipitation,videlicet,higherAPW values corresponding to lower precipitation values.With the effects of westerly winds,the APW mode presents as an uniform change within Xinjiang area and has a stable distribution.It is very different from Xinjiang rainfall mode which changes a lot spatially.As mentioned above,there is no obvious change during 1961~2000,this indicates that APW is not a dominant factor determining precipitation,it is the result of dynamic condition,water vapor convergence and other causes.

APW的地理分布与实际降水量分布相反,其最大区域却为降水量最小区,受西风带影响,新疆APW模态主要表现全疆一致变化,分布稳定,与降水模态分布差异性大有显著不同,且近40年来无显著变化趋势,表明决定新疆降水差异的根本原因不在于水汽的多少,而是由降水产生的动力条件、水汽辐合和其它因素差异决定的。

On species level, the geographical distribution, and distribution and diversity centers of Aletris L. were studied and the causes for its origin and speciation as well as its modern inter—continent discontinuous distribution were explored .

本文在种的水平上,研究了粉条儿菜属的地理分布及其分布中心和多样化中心,并对其起源和分化以及现代洲际间断分布格局的成因进行了分析。

First, with multi-centered concentralization and regular intersection of azonality and zonality, the villages are not uniformly distributed. Second, basically in agreement with the differences in rainfall, population distribution and regional economy, the number of cancer villages recedes from eastern part to western part in a graded pattern.

地理分布有两个特点:一是空间分布不均匀,呈现多中心集中形态,体现出非地带性和地带性规律的交叉;二是癌症村数量由东向西递减呈梯度分布,与我国的水资源、人口分布和区域经济差异基本一致。

Seven genera of Lasiocampidae are mainly distributed in south China and east China (except for individual species of Dendrolimus).

运用 GIS操作平台对我国枯叶蛾科7个属的地理分布进行研究,结果表明枯叶蛾科7个属的松毛虫主要分布於我国的东部和南部(除松毛虫属的个别物种在我国西北部有分布)。

According to the palaeogeographic distribution of the Carboniferous organic reefs, the Carboniferous organic reefs are mainly distributed in the range of 30 degrees north to 30 degrees south. Thus, it represents the Carboniferous organic reefs grow in the relative warm climate conditions and is similar to the distribution of modern coral reefs.

从石炭纪生物礁古地理分布来看,石炭纪生物礁基本上分布在南北纬30°之间的区域,因此,它们代表了在相对温暖的气候条件下生长的礁体,与现代珊瑚礁的分布相近似。

Purpose In this research, we applied three modeling methods to strive for accurately forecasting thepotential distribution of invasive species-Solenopsis invicta in China. Furthermore, we also researchedthe relationship between potential geographic distribution of S. invicta and environmental factors indetail to understanding how environment factors restricted distribution of Solenopsis invicta innon-suitable areas of Chinese mainland. The achievement of research provides a theoretical basis, whichcould guild the next step for the prevention and control stratagem ofS.

研究目的与意义:本研究通过3种不同机理的分析生物分布预测模型进行建模分析,力求准确预测入侵物种红火蚁在中国的潜在分布范围,并明确红火蚁潜在地理分布与环境因素之间的关系,同时找出在中国大陆地区非适生区限制其分布的影响因素。

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推荐网络例句

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。