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The average concentrations of Cr, Cd and Pb in ectoskeleton, liver, and muscle were 4.03, 0.12 and 12.31 μgg^(-1), 3.88, 1.04 and 9.12 μgg^(-1), and 4.16, 0.09 and 0.72 μgg^(-1), respectively. Among the three test sites, there existed significant differences in the enrichment of Cr in ectoskeleton and muscle, and of Cr, Cd and Pb in liver. The enrichment of test heavy metals had no notable correlation with the body mass of P. clarkia, and no significant difference was found in the enrichment of the heavy metals between female and male individuals.

外骨骼中Cr、Cd、Pb的平均含量分别为4.03、0.12和12.31μgg^(-1),合肥市、肥西、肥东三地之间除Cr的富集量差异极显著外,其他2种重金属的富集量差异都不显著;肝脏中Cr、Cd、Pb的平均含量分别为3.88、1.04和9.12μgg^(-1),3个地区重金属的富集量的差异都极其显著;肌肉中Cr、Cd、Pb的平均含量分别为4.16、0.09和0.72μgg^(-1),3个地区除重金属Cr的富集量差异极显著外,Cd和Pb的差异都不显著。3种重金属污染物的富集量与体质量没有明显的相关性。3种重金属在雌雄个体之间的富集差异不显著。

Tree Sparrow is a feasible species for monitoring the environment.

北京不同污染源的地区所采集的麻雀体内的污染物含量均比较高;各个元素之间具有明显的相关性;麻雀内部组织与羽毛中所富集的重金属具有明显的相关性,表明以麻雀作为监测城市环境污染状况是可行的。

The highest value was found in Gracilaria conferuoides for Fe enrichment with bioaccumulation coefficient at 204875.29, followed by Nemacysti decipientis for Hg at 13800.00; and the least one was Cladophora sp. for Se at only 3.48. No individual alga had strong accumulation of every heavy metal.

各藻类对各重金属的富集系数从几倍至几十万倍不等,最高是细江蓠对Fe 的富集,其次为海蕴对Hg 的富集,最差为刚毛藻对Se 的富集,其富集系数分别为204875.29、13800.00、3.48。

After finish the digestion, then flow back to the blood.also, during the period of liver and gallbladder concertrate in the hepatoenteral circulation,the bile acid can drain massively with the excrement.and more seriously after adding the fat feed stuff.if this condition go on, the fat cannot be absorbed in time and the energy will be wasted and cause some disease and etc.but after adding the appropriate exogenetic emulsifier,the question can be solved.

作为正常的机体,胆汁酸由肝脏分泌,进入肠道,在完成消化,回流入血液,又在肝脏和胆囊重新富集的肝肠循环的过程中,会经过粪便大量流失。在脂肪含量较高的饲料配方下,流失更为严重。日肝脏分泌量不足弥补流失量,会造成脂肪消化的阻滞,能量的浪费,且易诱发肝胆代谢紊乱等各种疾病。得不到消化吸收的油脂,在肠道内被噬油微生物降解,使噬油微生物类群大量增殖,打破原来肠道内微生态平衡,产生腹泻等菌群失调症,以上的问题,都是由于脂肪乳化作用不足和脂肪代谢失调造成的。在补充了合适本物种须求的外源性乳化剂后,问题可得到解决。

In addition, by calculating the bioaccumulation factor, the result shows that bioaccumulation ability of the Phragmites australis varies among the tissues, and the bioaccumulation ability of the root tissue that is prone to accumulate Pb and Cd is much higher than the stem and leaf tissues which are easy to concentrate Pb.

生物富集系数的计算结果显示,芦苇不同组织对有毒重金属元素的生物富集能力存在较大差异,根组织的生物富集能力最大,且容易富集Pb和Cd;而茎、叶组织的生物富集能力较低,易富集Pb。

Aiming at the disturbing of trace tin and trace germanium in existing simultaneous, using Artificial Neural Networks spectrometry determined simultaneously trace tin and trace germanium in extraction raffinate and stripping raffinate, tested the effect of these two metal separation and extraction.

针对微量锡与微量锗同时存在下相互干扰测定的困难进行研究,利用人工神经网络光度法比较准确的同时测定出萃余水相和反萃取水相中的微量锡与微量锗的含量,验证了两者的分离富集的效果。

Factor analysis was employed to reduce the number of parameters deduced from multiple radiometric methods. The derived principal components f1, f2 are undependent with each other and of identified geological means. The trend analysis on f1 and f2 was conducted to extract the remainder anomalies which reflect the radioactivity elements enrichment formed by fracture structures and locate the spatial positions of thermal underground water.

对于由多种放射性方法造成的多参数,采用了因子分析方法以降低参数量,组成互不干扰而地质意义明确的主成份分量f1、f2,继而对f1、f2进行趋势分析,提取了由构造断裂造成的的放射性元素富集的剩余异常,圈定出地下热储的空间位置。

Research result indicated that the cooperative effect between swell and precursor is main factor for the nanoparticle loaded in Nafion, and moreover, polarity of solvent and water content in Nafion also affects the load largely. To improve away the surface concentration of CdS nanocrystal on two side of membrane for general preparation, thioacetamide was first used as a precursor instead of inorganic sulfur source(H2S and Na2S) in synthesis of CdS nanocrystal. The assembly mechanism for several sulfur source had been studied, and CdS/Nafion with the character of homogeneous disperse had been prepared, which is fit for mass transmission in photocatalitic reaction. Following the investigation of several crystallizing way, simple and reliable hydrothermal-crystallizing was found. According to this way, maximal TiO2 load in Nafion achieved 43%. Activity of TiO2/Nafion or CdS/Nafion as a photocatalyst was explored initially for disintegrating liquid contamination. Maximal decompose rate achieved 86% under condition of this research.

研究结果表明:Nafion膜对纳米粒子负载量的主要影响因素是溶胀作用与前驱体协同效应,同时溶剂极性和薄膜含水量对负载量也影响相当大;本课题首次使用硫代乙酰胺代替传统无机硫源(H2S、Na2S)合成CdS纳晶,研究了各种硫源的组装机理,克服了常规技术存在的CdS纳晶趋于膜表面富集的缺点,得到了有利于光催化传质需要的体相均匀分布CdS/Nafion;研究了多种Nafion膜内纳米粒子晶化途径,找到了简单可靠的水热晶化法,TiO2纳晶最高负载量达43%;初步探索了TiO2/Nafion、CdS/Nafion作为光催化剂降解水中模拟污染物的活性,在本实验条件下最高降解率达86%。

The earth is a complicated system, and it has been continuously moving differentiating and evolving since it had been formed. Not only has the earth layering structure, but it has vertical movement of materials. The movement is prompted by the mechanism of force and heat of the centrifugal force to be formed by the rotation and revolution of the earth, and difference of temperature, pressure, density, viscosity and velocity in the between core and mantle, and radioactive heat, et al. The expressive means of the mechanism of force and heat are the precesses of mantle plume and mantle fluid. Not only are ore-materials of core and mantle carried directly into crust, but ore-materials of crust are activated and accumulated into proper location by the mantle fluid having the supercritical nature.

地球是一个复杂的系统,自形成以来,一直处于不停地运动、分异和演化过程;它不仅存在着圈层结构,而且伴随其自转和公转的离心力,以及核幔间的温度差、压力差、密度差、粘度差、速度差和放射性蜕变热等动热机制,同时存在着以地幔柱和地幔流体作用方式的物质垂向运动;这一过程,不仅直接向地壳带入核幔成矿物质,而且通过流体自身的超临界性质,将沿途活化已有初步富集的成矿物质转移至地壳适宜部位集中成矿。

61Ppm, REE distribution patterns of apatite standarded by NASA are classified into two types: The one is concave,"hat-shaped" REE pattern which is slightly enriched in intermediate REE and has a weak or even wanting Ce anomaly. To which, the sandy phosphorite of Jile is representative; the rest REE pattern is shown by more or less complete curve, although distinct Ce negative anomaly or weak Ce positive anomaly is shown up well. The stromatolitic apatite is the representative of this type.

其稀土元素北美页岩标准化配分型式主要分为两类:一类为中稀土略显富集的帽状形态的稀土元素配分型式,微弱的铈负异常或无铈异常,以极乐矿段砂屑磷块岩样品最为典型;另一类为轻稀土、中稀土和重稀土自然分异的三段弧形折线衔接而成的稀土元素配分型式,铈负异常较明显或微弱的铈正异常,以叠层石柱体磷灰石最典型。

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I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援,我们正徵召国家所有各种的力量:我们的外交及发展,我们的经济力量与道德劝说,所以你们与其他军人不须要孤独地负起国家安全的责任。

Imagine yourself to be an actor in a play on the stage.

设想你自己是一个演员在舞台上表演。