查询词典 population explosion

But Afrikaans is commonly spoken by most of the black population and by 60% of the white population.

黑人和60％的白人使用南非荷兰语，德语和一些本地语言也通用。

Phenotypic plasticity and genetic differentiation are the two major strategies that alien invasive plants can adapt habitat heterogeneity.The polymorphism of invasive plants and the diversity of their dispersal way enable them occupying invaded habitat quickly,and dispersing with a far range.The breeding strategies that agamogenesis and amphigenesis can coexist and trade off according to the habitat and invasive stage can not only promote the invasive population erupted massively,but also directly affect the dispersal mechanism and regulate the genetic structure of the population.

表型可塑性和遗传分化是外来入侵植物对生境异质性的两种适应策略；散布体多态型和散布途径多种化，使外来入侵植物迅速占领入侵生境，并进行远距离扩散；无性生殖和有性生殖并存，并根据生境和入侵阶段权衡的繁育对策不仅使入侵种群大面积暴发成为可能，而且直接影响散布机制并对种群遗传结构具有调节作用。

The thesis discusses the survival measure with human aidance in reintroducing Père David's deer, such as: guarantee living space, diseases prevention, habitat restoration, population and habitat monitoring and community co-management. All the work is in order to restore the nature Père David's deer population in Dongting Lake region.

本文讨论了重引入麋鹿的人类协助生存措施：保证生存空间、防治疾病、生境改造、种群与生境监测、社区共管等，以期最终在洞庭湖湿地恢复麋鹿自然种群。

Common buckwheat ( F. esculentum ) is an allogamy crop, which is heterogony. There is heterogeneity in the species. To reveal the genetic diversity within cultivar population, In order to explore the sampling strategy that can reveal genetic diversity of buckwheat resources on the molecular level. PCR with intron-splice junction primers and long random primers was employed to reveal the genetic diversity within nine common buckwheat varieties and one tartary buckwheat cultivar population among different individuals. We established the sampling strategy in its genetic diversity study. Then we used the established sampling strategy, and the same PCR markers technique,to analysis the genetic diversity of 86 common buckwheat resources, the main results are as follows

甜荞是花柱异长自交不亲和的异花授粉作物，品种内存在一定的异质性，为了准确揭示甜荞遗传资源的遗传多样性，本研究采用因子分析法对86份甜荞遗传资源农艺性状数据进行分析；采用长随机引物和内含子切接点引物的PCR分子标记技术，对9个甜荞品种和1个苦荞品种不同个体间的遗传多样性进行了分析，建立了甜荞资源遗传多样性研究的取样策略；并利用建立的取样策略，采用PCR标记技术，对这86份甜荞资源的遗传多样性进行了分析，取得如下主要结果

Japan, as the antecessor of population aging in the world, has paid great efforts in dealing with the effect brought by population aging, accumulated a lot of experiences and achieved good results.

日本作为世界老龄化的"先行者"，在处理老龄化带来的影响作了很多的努力，积累了很多的经验，并取得了很好的效果。

On the base of classification of morphology, we studied morphology, cytology and molecular biology of Lilium sulphureum Baker apud Hook. f. in Yunnan By principles of population biology. We synthetically discussed intraspecific differentiation and evolution, from four biotic levels of population, individual, cell and gene.

本文在形态分类的基础上，根据居群生物学的原理和方法，对淡黄花百合的形态学、细胞学、分子生物学进行了研究，从居群、个体、细胞和基因四个层次综合探讨了该种植物的种内分化与进化。

Minimum spanning network of the 18 non-coding haplotypes was made using ARLEQUIN 2.0 and genetic distance was calculated based on COII gene sequences. The analysis showed that the population was interrelated and the Apis cerana population of China had expanded in history.v.

对mtDNA的18种非编码区单倍型利用ARLEQUIN 2.0进行最小跨度网络分析以及对COⅡ基因的遗传距离计算显示，中华蜜蜂种群内部关系密切，在历史上曾发生过群体扩张； 5。

To investigate the genetic polymorphism of nine short tandem repeat loci in Han population of Southern China. The 9 STR loci (D11S2368, D12S391, D13S325, D18S1364, D22-GATA198B05, D6S1043, D2S1772, D7S3048, D8S1132) were amplified with STR_Typer_10_v1 kit for 1619 unrelated individuals of Han population in Southern China. The PCR products were analyzed with 3100 genetic analyzer and GeneMapper ID 3.1v software. The forensic efficiency parameters were calculated by PowerState V12.xls and the Hardy-Weinberg equilibrium was tested with Arlequin 3.11v software.

用STR_Typer_10_v1荧光标记试剂盒，对1 619例中国南方汉族无关个体的9个STR基因座(D11S2368，D12S391，D13S325 D18S1364，D22-GATA198B05，D6S1043，D2S1772，D7S3048，D8S1132)进行扩增，用AB公司3100遗传分析仪和GeneMapper 3.1v软件作STR分型，用PowerState V12.xls分析软件进行等位基因频率和法医学常用参数统计分析，用Arlequin 3.11v软件包作Hardy-Weinberg equilibrium平衡检验。

Methods The 9 STR loci (D11S2368, D12S391, D13S325, D18S1364, D22-GATA198B05, D6S1043, D2S1772, D7S3048, D8S1132) were amplified with STR_Typer_10_v1 kit for 1619 unrelated individuals of Han population in Southern China. The PCR products were analyzed with 3100 genetic analyzer and GeneMapper ID 3.1v software. The forensic efficiency parameters were calculated by PowerState V12. xls and the Hardy-Weinberg equilibrium was tested with Arlequin 3.11v software. The genetic polymorphism of 9 STR loci in Han population of Southern China was quite high.

用STRT_yper_10_v1荧光标记试剂盒，对1619例中国南方汉族无关个体的9个STR基因座(D11S2368， D12S391， D13S325 D18S1364， D22-GATA198B05， D6S1043， D2S1772， D7S3048， D8S1132)进行扩增，用AB公司3100遗传分析仪和GeneMapper 3.1v软件作STR分型，用PowerStateV12.xls分析软件进行等位基因频率和法医学常用参数统计分析，用Arlequin 3.11v软件包作Hardy-Weinberg equilibrium平衡检验。

The "reason" why governments tend to introduce distortions that discriminate against agriculture is that internal politics generally favor the urban population at the expense of rural people, despite the much greater size of the rural population.1 1 The political influence of urban consumers and industry enables them to exact cheap food at the expense of the vast number of poor rural people.

政府为什么倾向于介绍变形的"原因"，歧视农业在那一般的内部政治支持城市人口花费乡村人，尽管巨大得多的尺寸的这乡村人口。 11 都市消费者和勤奋的政治影响使他们能够花费巨大的糟糕的乡村的人的数量强制便宜的食品。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。