查询词典 population

The genetic structure of the raised population and wild population of Epinephelus malabaricus were studied by RAPD technique. Genomic DNA was extracted from 20 individuals of each population.

采用RAPD标记技术对海南点带石斑鱼养殖群体和野生群体的遗传结构进行了初步研究。

Behavioural Ecology and Populations:Population biology and population dynamics, Life history biology,Reproductive behaviour, sexual selection and the population consequences of individual behavour,Ethnobiology and evolutionary psychology,Ecophysiology.

其中行为生态学和人口包括：人口生物学和人口动力学，生命历史生物学，生殖行为，性的选择和个别行为人口推论，人种生物学和进化心理学，生理生态学。

Up to date, QTL analysis of adult-plant resistance against powdery mildew has not been reported in China. In the present study, QTL mapping of APR was conducted using a doubled-haploid population derived from the cross (Fukuho-komugi × Oligoculm) and a F_(2:3) population from the cross (Bainong64 × Jingshuang16). The methods and main results are described as follows:1. A doubled-haploid population from an intervarietal cross between the Japannese cultivar Fukuho-kumugi and the Israeli wheat line Oligoculm was prouduced by means of wheat × maize crosses.

国内关于白粉病成株抗性的QTL分析尚未见报道，本研究开展了小麦白粉病成株抗性鉴定、遗传连锁图构建、白粉病成株抗性QTL分析，得到以下研究结果：(1)以抗白粉病的日本小麦品种Fukuho-komugi和以色列小麦Oligoculm杂交产生的DH群体为材料，利用313个SSR标记和37个RFLP标记，对Fukuho-komugi和Oligoculm的白粉病成株抗性进行QTL分析。

The signal plants by sexual reproduction predominated faintly over ramets in genet population, but accouted for little proportion in clone population, which shows that the ramet has large quantity and has been the main part of population.

目前有性繁殖产生的单生植株在基株种群中还略占优势，但占无性系种群的比例小，表明无性繁殖产生的无性系小株数量大，无性系小株已逐步成为种群的主要组成部分。

The analyses of social and economic development indicate that, up to 1998, the total population in Yijinholo County is 143, 949 persons, the population density is 24 persons per square kilometer, large population number results in land exploitation for food and overgrazing in rangeland. The change in temporal and spatial pattern of landuse from 1977 to 1998 demonstrates that mobile sand dunes was replaced by rangeland and woodland and partial shrubland in the middle of study area changed into rangeland and farmland from 1977 to 1987, while mobile sand dunes and rangeland transformed into shrubland and farmland in a small parts from 1987 to 1998, the above-mentioned change is proved by the change of fractal dimension index and fragmentation index at landscape and its element levels.

对近50年来伊旗社会经济发展的分析结果表明，虽然人口增长率基本上呈下降趋势，但由于人口基数较大，截至1998年底，伊金霍洛旗的人口总数达143949人，人口密度为24人／平方公里，较高的人口密度带来了更多的生存需求，使得大量的草牧场被开垦，而剩余的则严重超载。1977-1998年间伊土地利用结构总体格局变化的分析结果表明，1977-1987时段内主要是流动沙地为草牧场和乔木林地所取代，伴随着中部的部分灌木林地转换为草牧场和农地：而1987-1998时段内主要是草牧场和流沙地为灌木林地和农地特别是灌木林地所取代，而景观及各景观要素的分维度指数和破碎度指数的变化也充分证实了这一结论，虽然在前10年（1977-1987年）中大面积的灌木林被砍伐，但土地利用格局的整体变化间接地反映出该时段内荒漠化的状况正在发生逆转。

Based on GIS, this paper quantitatively analyses the relationship between population distribution and environmental factors including elevation, land use, road system and river system, and the relationship between population density and residential area density in Qinghai-Tibet plateau. These relationships lay a foundation for spatialization of population census data in the study area.

本文利用GIS工具定量地分析了青藏高原地区人口分布与海拔高度、土地利用、道路网、河流水系等环境因素的关系以及人口密度与居民点密度之间的关系，这些客观存在的关系是进行人口统计数据空间化的基础。

B. Population Density. Population density will affect theb. Population Density.

b。人口的密度：人口的密度影响到厕所的可用空间和种类。

It is under the blow that weigh calamity, latter-day Anhui population produced bigger change, calamity causes population amount to drop, come from 1868 1949, anhui population is in all the time 20 million the left and right sides wanders.

在重灾打击之下，近代安徽人口发生了较大的变化，灾难造成人口数量下降，自1868年至1949年，安徽人口一直在2000万左右徘徊。

Under new circumstances,we should change our ideas in the management of floating population ,improve the methods of managing floating population and thus prevent the illegalities and crimes committed by floating population.

反思以往流动人口犯罪治理的得失，新形势下如欲成功治理流动人口犯罪，必须更新流动人口管理的理念，改进流动人口管理方法，积极预防流动人口违法犯罪。

Shenzhen is a city of immigrants in more than 400 million of the resident population, only around 50% of the population is domicile, or legal sense "Shenzhen", there are more than 50% is "transient population" is not even "temporary licence" of the "three noes" and "two nil","without" members, They are not legal sense "Shenzhen."

深圳是一个移民城市，在400多万的常住人口中，仅有50％左右是户籍人口，即法律意义上的&深圳人&，还有50％以上是&暂住人口&，甚至是没有&暂住证&的&三无&、&二无&、&一无&人员，他们不是法律意义上的&深圳人&。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。