查询词典 populations

The paper reviewed the host selection mechanisms and rules of xylophagous insects and their application foreground in forest health evaluation. According to the rule that some secondary xylophagous insects always accompany with trees which are sub-healthy or unhealthy, ideas of diagnosing and evaluating forest health betimes using xylophagous insects were posed. Mathematical models would be established based mainly on interactions between quantity of xylophagous insect populations and status of forest health, interspecific interactions (community structure, biodiversity) and environmental factors were also added as supplementary parameters, in order to quantitatively analyzing and comprehensively evaluating forest health and its developing trend.

本文综述了蛀干昆虫对寄主植物选择机制和规律的国内外研究进展及其在森林健康评价中的应用前景，根据蛀干昆虫中次期性种类总是与亚健康和衰弱林木相伴的规律，提出了利用蛀干昆虫早期诊断和评价森林健康的思路，以蛀干昆虫种群数量与林木健康状况的相互关系为主，辅以物种间相互作用关系、环境因子等建立数学模型，定量分析和综合评价森林健康及其发展趋势。

This yellow fatty streak seen in childhood is not necessarily a precursor of adult atherosclerosis and occurs in populations in which atherosclerosis is uncommon; it is presumably reversible at this stage.

孩童时期便可见到的这种黄色脂纹，并不一定是成年后动脉粥样硬化的先兆，若发生在动脉粥样硬化病不常见的人群中，可能在此阶段是可逆转的病变。

Finally, the new zoster and human papillomairus accines may be useful for specific at-risk populations.

最后，新型带状疱疹病毒和人类乳头状瘤病毒的疫苗对于那些高危人群的预防可能是有效的。

In unitary populations, each zygote gives rise to a single individual.

在单体生物种群中，每一受精卵发育成一单个个体。

Preliminary Study on SSR Analysis in Natural Populations of Actinidia.

卢大用：自由基在生物体内的功能和抑制剂，生物学杂志，1999；16 (3)： 48-50

Genetic diversity was preliminarily investigated for nine natural populations of two commercially important species of Actinidia chinensis and A.

采用SSR分子标记技术对我国猕猴桃的2个商业栽培物种——中华猕猴桃和美味猕猴桃的9个天然居群(共221个样)的遗传多样性进行了初步分析。

Adenophora populations was corresponded highly with their geographic distance (R^2=0.294, p.001), indicating that the geographic isolation is a main factor to block the gene flow of A. adenophora.

各紫茎泽兰种群间的遗传距离和地理距离之间高度相关(R^2=0.294，p.001)，说明地理距离是影响种群间基因交流的重要因素。

Different studies have looked at different populations and different adjunctive therapies, so much so that it's difficult to standardize and compare the evidence.

各项的研究针对于不同的人群和辅助疗法，以至于很难在统一的标准下对所得证据进行比较。

Only 3 haplotypes existed within chinese goat populations by analyzing 96 sequences in the study, combined 16 domestic goats and 2 wild goats (Capra aegagrus and Capra falconeri) reported in documents. The average number of nucleotide differences, average number of nucleotide subs.

将本研究测定的96条mtDNA的D环全序列与文献报道的16条家山羊序列、2种野山羊的D环序列结合分析发现，文献报道的单倍型仅有3种在中国山羊中存在。

Dendrogram divided 37 haplotypes into two major clusters, capra aegagrus clustered into lineage A, while capra falconeri clustered into other lineage. Lineage A is the predominance lineage of the 7 goat populations, while lineage B has a relatively small proportion.

系统发育树将37种单倍型划分为两个较大的分支，角猾羊1条序列聚入A分支，而捻角山羊则自成1支。A分支为7个群体的优势类型，B分支的影响相对较小。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷