查询词典 diversity

The significance of the spatial variation in gene diversity among populations was estimated by per-forming a hierarchical analysis of genetic diversity among populations using the analysis of molecular variance model, as described in Michalakis and Excoffier (1996) and available in ARLEQUIN.

种间基因多样性空间变异的显著性用在分子变异模型上操作的种间遗传多样性层次分析来估计，如同Michalakis和Excoffier (1996)描述的，并且在 ARLEQUIN软件中也有效。

Avian ; Avifauna ; Group diversity ; Species diversity ; Three Gorges Reservoir

鸟类；区系；类群多样性；物种多样性；三峡库区

The IBS has abilities to develop more general theories of the diversity of life, and to conserve biological diversity may well rest on insights from the field of biogeography.

该协会有能力从事生物多样性保护的研究，进一步发展生物多样性理论和生物地理学。

The 1992 Convention on Biological Diversity provides a framework for countries to conserve biological diversity and promote sustainable development.

1992年的《生物多样性协定》为世界各国保护生物多样性和推进可持续发展提供了一个框架。

According to the dendrogram by UPGMA cluster analysis using Neis(1972) distance calculations based on AFLP banding, all the accessions were distinct and revealed enough genetic diversity for identification and classification of accessions within Cajanus cajan. From ME cluster analysis, 9 distinct evolutionary groups were detected. The preliminary results indicated that China maybe one of the pigeonpea genetic diversity minor center.

根据AFLP多态性数据绘制的聚类图，将139份木豆资源分为9个类群，并在分子水平上初步探讨了它们之间可能存在的演化关系，支持了木豆起源于印度，并在非洲东部形成次生起源中心的观点，并提出中国可能是栽培木豆的又一次生起源中心。

Tree species diversity in the secondary forest was significantly lower than that in montane moist evergreen broadleaved forest at climax stage as compared by Shannon-wiener index, Simpson's diversity index, and Fisher's index.

以Shannon-Wiener指数H、Simpson指数D和Fisher指数α计算了栎类次生林的树种多样性(H=1.42±0.27；D=0.65±0.09；α=2.59±1.16)，并与中山湿性常绿阔叶林的树种多样性进行了比较，结果显示处於演替顶级阶段的中山湿性常绿阔叶林具有更高的树种多样性。

From the result it can be proved that the gain of transmit diversity is identical with receive diversity, and the gain of the diversity is profitable to the performance of the system Fourthly, Turbo codes and BLAST coeds is studied whit emphasis.

通过对其的研究进一步详细探讨了多输入多输出天线系统的空时编码算法的原理，以及发射分集和接收分集对提高系统性能的贡献，证明了发射分集增益和接收分集增益的等效性；第四，研究了Turbo 码和BLAST 编码。

But the idea that the elements of instability are the root of diversity runs counter to one of the hoariest dictums of environmentalism: that stability begets diversity, and diversity begets stability.

不稳定的自然力量是多样性产生的根源，这种想法与一条古老的环境决定论格言背道而驰：即稳定性产生多样性，多样性又带来稳定性。

But the idea that the elements of instability are the root of diversity runs counter to one of the hoariest dictums of environmentalism: that stability begets diversity, and diversity begets stability.

不稳定的元素是多样化的根源，这种想法与一条古老的环境学格言背道而驰：即稳定产生多样化，多样化产生稳定。

Hereby,the research tries to construct a macro frame of agriculture insurance development by the planning of law status ,organization system,governmentail subsidy manner,reinsurance system and disaster risk fund;hereon,a regional diversity strategy on the development of Chinese agriculture insurance is put forward after the regional diversity design for supervision mode,management dealing,insurance policy and other aspects. It probes into the sity-four-dollar question—the diversity of regional subsidy standard,mainly from the rate division of agriculture insurance and regional difference amont farmer's payment ability. Finally,the objective mode is established for developing political agriculture insurance at different regions.

据此，本研究探讨设计了中国农业保险的法律地位、组织体系、政策补贴方式、再保险制度和巨灾风险基金制度，并尝试构建了农业保险发展的宏观框架；在此基础上，提出了中国农业保险发展的区域差异化策略，分别从监管模式、经营行为、保险政策等方面进行了区域差异化设计，并重点从农民支付能力的区域差距和农业保险费率分区两个方面，探讨了区域农业保险差异化发展的关键问题——区域补贴标准的差异化，进而探索设计了各区域政策性农业保险发展的目标模式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。