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We investigated the behavior of plateau pika Ochotona curzoniae in populations of different density in 2003, using focal-animal sampling technique during the reproductive season, which included early stage, peak, middle and later stage of reproduction.

在2003年高原鼠兔的繁殖初期、繁殖盛期、繁殖中期和繁殖末期,采用目标动物取样法对其不同种群密度条件下的行为模式进行研究,探讨高原鼠兔的行为变化和种群密度的相互关系。

The sister-group relationships are strongly supported between Petrosaviaceae and the remaining monocots (except for Acoraceae and Alismatales s.l.), between Dioscoreales and Pandanales, and between Commelinales and Zingiberales in the combined analyses of two genes and three genes.

继无叶莲科之后分化的类群形成两个大的分支:一支是由露兜树目和薯蓣目构成,二者形成姐妹群关系;另一支是由天门冬目、百合目和鸭跖草类复合群组成,三者之间的关系在单个序列分析和联合分析中不稳定,需要进一步扩大取样范围来确定。

The characterization of the fermental Toxigenic Pasteurella multocida (Pm 13-1) is studied according to the vaccine standard.

为检验该培养方法培养出的T+Pm是否符合对T+Pm制苗用菌液的生物学特性鉴定标准,分别取样作培养特性检验、菌体形态检验、糖发酵实验、T+Pm毒素产生的检测及荚膜型鉴定。

In this paper the simplified equations for computing the complex permittivity is gained by detailed analyses of the resonant-cavity perturbational theory.

谐振腔微扰法特别适合对微小体积样品的测试,很好解决了生物组织样品取样数量有限的问题。

Biological samples are very limited usually, and resonant-cavity perturbational method especially fit for the measurement of micro amount samples settled with the limitation of sampling.

通常生物组织的取样数量十分有限,因此微量介质的介电常数测量在生物介质特性测量领域显得十分必要。

In addressing the heterogeneity factor, this paper will use Logistic regression, the Beta-binomial model the Williams method arid GLMM to analyze the secondary data collected at the incidence of Downy mildew on grapes and Phomopsis leaf blight on strawberrys. Also, there will he a thorough discussion on the advantages and disadvantages among the different model approaches according to -2 Res Log Likelihood, AIC, BIC and residual plots.

本研究旨在探讨病害发生率的研究中,以层次取样法进行抽样,并以实际资料葡萄露菌病和草莓叶枯病的病害发生率为例,藉由计算离势参数、-2 Res Log Likelihood、AIC、BIC和绘制残差图,比较逻辑斯回归、贝他-二项模式、威廉斯模式与广义线性混合模式四种模式对资料进行配适情形,来探讨这些方法克服过度离势的能力并比较其优劣。

Is supposed to be close to the phytosociological minimum area of the forest type.

时开始趋于平缓,意味着该取样面积可以考虑作为群落最小表现面积。

The determination of the qualitative and quantitative minimal areas,which are 25~50 cm2 and 51~72cm2,respectively,allows the phytosociological study of the corticolous communities of Western Tianshan by means of integral sampling.

结果表明,树皮生地衣群落的定性和定量最小面积分别为25~50cm2和51~72cm2,同时证明了整体取样技术适合树皮生地衣的植物群落学研究。

The spatial regeneration pattern of the Picea wolsonii was studied in the two plots of different disturbance intensity according to the spatial sampling method and design.

依据地统计理论和方法,采取小支撑多样点的空间取样设计,在干扰强度不同的两个华北落叶松林分中设置样地,对云杉更新幼苗的空间格局进行了定量比较研究。

Fruit oil Content of 9 natural populations of Pistacia chinensis was investigated with Nuclear Magnetic Resonance method.

采用核磁共振技术,对我国黄连木分布区9个天然群体果实含油率进行取样测定。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。