查询词典 biological

The results showed that the population density and biological rhythm of the scale insect were contrasted with the content of VB2 and the VB2 content in the two pollution districts were significantly higher than that in the cleaning district.

结果证明，污染区国槐枝条和叶片的VB2含量极显著地高于清洁区；VB2的变化与虫口密度呈正相关关系，回归式为y=1507.76x-170.56，相关系数r=0.839。

Firstly, the effect of multiple ecological factors on biological characteristics of Arthrobacter population was nonsymmetrical in heavy metal tailing soil, and bacteria tend to regulate the INC relatively to IDC when facing the natural selective pressure.

种群在高浓度Pb选择条件下降低的遗传多样性表明它们在适应重金属污染时付出了进化代价，抗重金属在某种程度上也降低了菌株对干旱胁迫的耐受。

One of the theoretical issues arising from any pesticide is the effect of a killing substance on the target population. Because a target population is a biological entity, and as such, subject to evolutionary and ecological processes, evolutionary ecologists would predict that a substance designed to kill insects would at the same time act as a selection pressure for resistance to the same substance.

理论上，我们需要关注的问题之一是，杀虫剂对目标群体杀伤作用的影响，因为，目标群体属于一个生物体系，同样需要遵从进化和生态学过程，进化生态学家认为，杀虫剂用来杀虫同时，也是一种针对杀虫剂抗性的选择压力。

The biological analysis results showed: Population Doubling Time of cells was approximately 24 h;Diploid account for 76%～88% in cell's chromosome;By Isozyme analysis of Lactic Dehydrogenase,Malic Dehydrogenase,cross contamination had not taken place;The test results of ...

结果表明：细胞群体倍增时间约为24 h；细胞染色体中二倍体(2n=60)占主体，镜检细胞的百分比为98.2%；乳酸脱氢酶、苹果酸脱氢酶同工酶分析，没有其他物种污染；细菌、真菌、病毒、支原体检测阴性。

Results Primary RPCs extracted from the neural retina demonstrate certain biological characteristics: the cell population could form neurospheres and younger adherent cells expanded in clusters.

结果 从兔胚胎视网膜神经部分离出的原代视网膜前体细胞具有明显的生物学特性：所培养细胞可形成悬浮生长的细胞团，刚贴壁的细胞成簇状生长，这些细胞用免疫细胞化学染色神经上皮干细胞蛋白表达呈阳性。

This paper summarized the survey, collection, storage, research and utilization of forage germplasm resource; its current status, existing problems and suggestions about subsequent progress were discussed, including superior and rare germplasm collection, forage genetic diversity research, biotechnology utilization in forage germplasm innovation, duration of germplasm storage, natural evolution speed, storage techniques of short-life seeds, super gene exploration and function, biological base of species and population conservation.

为此，论述了我国牧草种质资源调查、收集、保存、研究和利用的现状，存在问题及对今后发展的建议，提出今后应加强优良和珍稀牧草种质的搜集、生态型及遗传多样性的研究和利用、生物技术在优良牧草种质创新的应用、种质保存的时效性和野生状态下牧草遗传变异与进化的速率、短寿命牧草种子保存技术、优良基因的发掘和功能研究以及利用平台的构建、物种或种群保护的生物学基础研究7个重点领域的研究。

The precision and accuracy of the method can meet the requirements of biological sample analysis.

方法的检出限、精密度和准确度基本满足生物样品的分析要求。

Objective The measurement of the ethanol concentration in the biological sample was discussed.

目的 探讨生物样品中乙醇浓度的测定方法。

It is significant for the research of aqueous biological sample adsorbed on the solid surface.

高分辨的图形对于吸附在固体表面水溶生物样品的研究，获取分子内部信息很有意义。

Sample technologies are used to isolate DNA, RNA and proteins from any biological sample.

行业领先的技术使我们在未来能够持续成长和保持领先地位。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。