重金属
- heavy metal
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[heavy metal] 高比重的金属;尤指比重为5或以上的金属,如铁、钴、镍、铜、铅、锌、铌、钽、钼、钨
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他的音乐是重金属乐和鬅客摇滚乐的强节奏混合体。
His music is a heady brew of heavy metal and punk .
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重金属音乐真正形成于60年代后期。
Heavy Metal music really arose in the late 60s .
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黑皮夹克与纹身是重金属乐手的标准行头。
Black-leather jackets and tattoos are the standard tools of the trade for heavy-metal musicians .
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砷的主要处理方法有硫化物沉淀法,或与多价重金属络合。
Major treatment methods for arsenic include sulfide precipitation , or complexation with polyvalent heavy metals .
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弹奏空气吉他其实就是演奏者假装在用电吉他弹奏摇滚或重金属音乐,做出一些舞蹈和演奏动作,假装演奏部分可能是即兴重复段落或独奏。空气吉他弹奏多包含夸张的随意弹奏和拨片动作,同时伴有高声演唱或对嘴形表演。
Playing air guitar is a form of dance and movement in which the performer pretends to play rock or heavy metal-style electric guitar , including riffs , solos , etc. Playing an air guitar usually consists of exaggerated strumming and picking motions and is often coupled with loud singing or lip-synching .
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重金属对水稻和小麦DNA甲基化水平的影响
Effects of Heavy Metal on the DNA Methylation Level in Rice and Wheat
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重金属CdCuZn在小麦中富集特征的实验研究
Enrichment Character of Heavy Metals Cd , Cu and Zn in Wheat
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重金属Cd污染土壤毒性的发光菌法评价
Toxicity assessment of Cd contaminated soil using bioluminescence assay
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X射线荧光光谱法测定哈尔滨城郊菜地土壤重金属
The Determination of Heavy Metals in Vegetable Soil by X-Ray Fluorescence Spectrometry in Suburb of Harbin
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ZnO对碲铌基重金属氧化物玻璃的结构和光学性能的影响
The impact of ZnO on structure and optical performances for TeO_2-Nb_2O_5 glass
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重金属Pb在不同水产品中的含量及污染状况评价
Contents and Pollution of Pb in Various Fisheries
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除土壤有效Cr与全Cr无显著相关外,其它有效态重金属与全量之间均呈极显著正相关。
There were highly significant positive correlations between available and total contents of heavy metals except Cr.
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炼锌废渣中重金属Pb、Zn的矿物学特征
The mineralogical characteristics of heavy metals ( pb , Zn ) in historical Zn smelting wastes
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银川市PM(2.5)重金属元素的环境污染特征分析
Environmental Pollution Characteristics of Heavy Metal Elements of PM_ ( 2.5 ) in Yinchuan
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成都平原土壤重金属Pb的化学形态分布及其影响因子分析
Analyse of the chemical forms and infection factor of heavy metal Pb of soil in Chengdu plain
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重庆市大气TSP中重金属浓度季节变化同样比较明显。
Mass concentration of heavy metals in TSP seasonal variety is remarkable .
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通过重金属与Fe元素作线性回归方程,求得重金属的背景含量。
Through linear regression equation of heavy metals and Fe element , the background contents of the heavy metals are sought .
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土壤和沉积物中重金属积累及其Pb、S同位素示踪
Accumulation of heavy metals in soils and sediments and determination of pollutant source by Pb and S isotopic tracers
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采用室内暴露实验方法,研究了混合重金属离子相互作用对Cu、Pb在鱼组织中吸收、积累以及其诱导的脂质过氧化作用。
The present paper has studied accumulation of copper and lead in fish tissues and lipid superoxide by interaction of the mixture-metals .
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但稀酸提取法测定重金属元素Cr、Mn的结果与国标法差异较大。
However , the thinner acid method was shortage in the determination of other heavy metal elements such as Cr and Mn .
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结果表明,该水域底栖生物未受重金属污染,但甲壳动物和软体动物体中Cu和Zn具有潜在的严重积累问题;
Benthons have not been polluted by heavy metals , but the concentration of Cu and Zn in crustacea and mollusc has potential serious accumulation problems .
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重金属Pb元素在实验区群落叶和枝中的平均含量高于对照区,而干含量则和对照区相同;
Concentration of heavy metal Pb in leaf and branch in experimental community was higher than in contrast community , but it was the same in trunk .
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按土壤类型划分,水稻土土类重金属含量高于赤红壤土类(Hg除外);
In terms of content of heavy metals ( except for Mercury ) paddy soils > lateritic red earth , according to soils type ;
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结果表明:Pb的转移系数小于Cd,说明这两种重金属在烟草体内的迁移能力是Cd>Pb;
The results show that the translocation factor ( TF ) of Pb is lower than that of Cd , indicating that Cd in tobacco moved more easily than Pb .
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底质中重金属污染较为严重,大部分站位均达到极强的生态危害,主要污染元素是Hg。
The heavy metals pollution in sediments is much severer and seriously harmful to ecology in most stations . Hg is the primary element of pollution .
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重金属元素的浓度在沉积物-水界面处变化明显,夏季沉积物中的Cr对上覆水体水质的影响较大。
At the water-sediment interface , the concentrations of these elements had an obvious variation . In summer , Cr in the sediment had greater influence on the quality of overlying waters .
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Pb(82%~120%)。结果表明对饮用水中重金属元素实现绝对分析是可行的,其发展前景是很乐观的。
PB ( 82 % - 120 % ), the results show that we can analyze heavy metal 's concentration in drinking water by absolute analysis method which has a bright future .
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并结合沉积物的pH值、粒度组分、粘土矿物组分等理化性质,对淮河中下游河道沉积物中重金属含量与沉积物理化性质间相关性进行研究。
At the same time , by combining the geochemical properties of the sediments , such as pH 's value , grain size , mineral components and so on , these property relations to heavy metal concentrations were analyzed .
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研究表明,应用BCR连续提取法有助于确定土壤重金属污染以及重金属向下迁移状况,借助该法可以有效、可靠地对土壤重金属污染进行评估。
The results showed that application of sequential extraction of BCR was useful in assessing the pollution and movement of heavy metals in soil .
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彗星试验结果表明重金属污染土壤对蚯蚓产生明显的遗传毒性,并观察到随着暴露时间延长,蚯蚓体内产生DNA修复机制,提示彗星试验是检测土壤基因毒性的有效手段。
The results of the comet assay demonstrated the genotoxicity of metal contaminated soils . And a DNA repair process in earthworm was observed as the exposure time prolonged . And the comet assay is capable of examining the genotoxicity of soils .