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      生物吸收系数
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  their coefficients of absorption
     Mo, Hg, Cd, Cu, Zn are easy to transfer, their coefficients of absorption are usually higher than 1.0. Cr, Ni, Pb, As are hard to transfer,their coefficients of absorption are all mostly lower than 0.3. The contents of trace elements in herbaceous plants are affected by the species of the plant and the soil environment.
     植物微量元素组成与植物种类及其生境条件有关。 生物吸收系数反映植物摄取元素的强度,Mo、Cd、Hg、Zn、Cu的生物吸收系数通常大于1.0,属强积聚元素,Pb、Cr、Ni、As的生物吸收系数大多低于0.3,是弱摄取元素。
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  “生物吸收系数”译为未确定词的双语例句
     The sequence of absorption coefficient of the elements is Zn>Fe>Mn>B>Cu.
     生物吸收系数大小顺序为Zn>Fe>Mn>B>Cu.
短句来源
     (4)The biological absorption coefficients of K,Zn and B by the plant s in limestone soil were higher than in acid soil,while those of other elements such as N,P,Ca,Mg,Fe,Al and Mn were just on the contrary.
     (4 )K、Zn、B的生物吸收系数是石灰岩土高于酸性土 ,而N、P、Ca、Mg、Fe、Al、Mn则是酸性土高于石灰岩土。
短句来源
     The content of Al higher than those in acid soil, but the absorbencies of other elements (N, P, Ca, Mg, Fe, Al, Mn and Zn) were lower than those in acid soil.
     5 )元素K、B的生物吸收系数在石灰岩土壤高于酸性土壤 ,其他元素N、P、Ca、Mg、Fe、Al、Mn、Zn的生物吸收系数则是酸性土壤高于石灰岩土壤
短句来源
     The sequence of absorption coefficient for the trace elements is Zn, Fe, Mn, B, Cu in order.
     生物吸收系数顺序则为Zn>Fe>Mn>B>Cu。
短句来源
     The biological absorption coefficients of heavy metals vary in a complex manner and are larger with Au, Sb, Cd, and Zn.
     元素的生物吸收系数由大至小顺序为Cd、Au、Zn、Hg、Sb、Cu、Pb、As、W。
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  相似匹配句对
     Biological Calcification
     生物钙化作用
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     The sequence of absorption coefficient for the trace elements is Zn, Fe, Mn, B, Cu in order.
     生物吸收系数顺序则为Zn>Fe>Mn>B>Cu。
短句来源
     Bio-Mass Spectrometry
     生物质谱
短句来源
     The sequence of absorption coefficient of the elements is Zn>Fe>Mn>B>Cu.
     生物吸收系数大小顺序为Zn>Fe>Mn>B>Cu.
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     THE ABSORPTION COEFFICIENT OF H~-
     H~-之吸收系数(英文)
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  biological absorption coefficient
Some indices such as 'contamination degree', 'geoaccumulation index', and 'biological absorption coefficient' were used to assess eco-environmental quality.
例句来源      
Multi-element analysis of these samples was carried out and the biological absorption coefficient (BAC) was calculated.
例句来源      
Zinc, W, Mo, Ni and Cr show the maximum biological absorption coefficient (BAC) ranging 0.4-1.7, 0.1-104.6, 1.1-2.6, 0.2-1.6 and 0.2-3.6, respectively, and the results suggest bioaccumulation of these elements in plants.
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However, the BAC (biological absorption coefficient), which is the ratio of lead content in the plant to the lead content in the soil, a measure of relative accumulation, decreased by one to two orders of magnitude, except for grasses and snakeweed.
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  their coefficients of absorption
The treatment of GaAs single crystals with ultrasonic waves leads to a change in their coefficients of absorption of electromagnetic radiation.
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Effect of the disperse composition of drops of Al2O3 in flames on their coefficients of absorption and scattering
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         study on the features of the contents,distributions and accumulations of 11 chemical elements in soils and vegetations was carried out in each of the subalpine meadow zone ,the mountain five-flowered herbosa meadow zone and the evergreen coniferous forest meadow of the Mountain Meadow Natural Reserve in Mt . Wutai. It was found that the contents of chemical elements in the soils in each of these zones are within the ranges of their own na-tional averages in the same kind of soils, with both Co and Ni at...
            五台山山地草甸自然保护区可划分为亚高山草甸带、山地五花草甸带、常绿针叶林草甸带。本文研究了各生态带土壤和植被中11种化学元素的含量、分布及生物积累特征。研究表明:(1)各带土壤中化学元素含量均在全国同类型土壤含量范围之内,就平均含量而言,Co、Ni含量较高,其它元素含量较低,整体属清洁理想水平,合乎自然保护区土壤环境标准。(2)各带植被中营养元素含量较高,营养丰富。尤其是亚高山草甸带是饲用价值很高的富养优质牧草区,应很好地保护和利用。(3)各带植被的生物吸收系数均以Ca、K为最大,Co最小。
文摘来源
         In this paper, the biologically absorbing coefficients and the contents in plants of trace elements were investigated for 12 medicinal plant spedes in Hainan Province. The results show that the coefficient differed among families, among genus and among spedes. The difference decreased in the sequence of the elements: Mg>Al>Fe>Mn>Zn>Cu. The coefficient differed between spedes of the same genus, and between species of different habitats. The coefficient of Areca catechu in Halnan, for example, was greater tha...
            本文研究海南兴隆地区12种不同类型药用植物微量元素的生物吸收系数(Ax)及其含量水平变化特性,结果表明不同科、属、种植物对同一元素的吸收量差异显著,以Mg>Al>Fe>Mn>Zn>Cu为序;同属不同品种植物在不同生境中对微量元素的生物吸收系数各有差别,海南槟榔(Ax0.30×10-6、12.51×10-6)>泰国槟榔(Ax0.29×10-6、11.59×10-6>云南槟榔(Ax0.27×10-6、11.56×10-6),元素间吸收量相比以Mo>Zn>Cu>Mn>Ni为例;同种植物不同器官微量元素的吸收量也是不同的,例如巴戟天的含量以根(218.48×10-6>叶(115.19×10-6)>茎(113.02×10-6)。植物与土壤中元素含量消长变化关系密切,相比之下,植物中Fe、Mn、Zn含量均高于Cu、Ph、Ni。绞股蓝(189.26)>巴戟天(169.04)>益智(161.70)>槟榔(155.88)。
文摘来源
         The average contents of trace elements Zn, Cu, Mo, Pb, Cd, Cr, Ni, As and Hg in some herbaceous plants in Hainan province are tested to be 40.49, 8.39, 7.16, 2.47, 1.24, 1.50, 0.85, 0.71 and 0.07 mg/kg, respectively, so we can find that their orders are Zn>Cu>Mo>Pb>Cr>Cd>Ni>As>Hg. The contents of trace elements in Paspalum commersonii and Elephantopus scaber are high, while the contents in Schizachyrium sanguineum and Imperata cylindrica are usually low. Mo, Hg, Cd, Cu, Zn are easy to transfer, thei...
            海南省位于我国热带地区,草本植物微量元素组成可反映热带区域生物地球化学特点。海南植物微量元素含量属正常范围值,仅个别植物Cd、Hg含量偏高。植物Zn、Cu、Mo含量大多在5mg/kg以上,Pb、Cu、Cd含量一般低于2mg/kg,Hg、As、Ni通常不足1mg/kg。雀稗(Paspalumcommersoni)、地胆草(Elephantopusscaber)等微量元素含量普遍较高。红裂稃草(Schizachyriumsanguineum)、白茅(Imperatacylindrica)等微量元素含量一般较低。植物微量元素组成与植物种类及其生境条件有关。生物吸收系数反映植物摄取元素的强度,Mo、Cd、Hg、Zn、Cu的生物吸收系数通常大于1.0,属强积聚元素,Pb、Cr、Ni、As的生物吸收系数大多低于0.3,是弱摄取元素。
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