查询词典 Zn

Tailing buildups on the river channel are very extensive and thick and have high contents of heavy metals such as As, Pb, Zn and Cd, which, in addition to directly jeopardizing the quality of water environment, has resulted in the decrease in the flood discharge capacity and increase in the flooded area.

河床上的尾砂沉积范围广、厚度大，重金属As、Pb、Zn、Cd含量非常高，除直接危害了水环境质量外，还造成河道泄洪能力下降和洪水淹没范围的扩大，构成时沿江土壤环境和生态环境的严重威胁。

The enrichments of Cd, Pb and Zn occur mainly in the urban area and agricultural topsoils in the plain region, which agrees with the high value area in the geochemistry maps in topsoils of Chengdu Basin.

Cd、Pb、Zn元素的富集主要出现在平原区中部的城镇及农田区，与成都盆地浅层样地球化学图上的高值区一致。

The higher gasification temperature, the higher the relative enrichments of As, Cd, Co, Cr, Cu, Mg, Ni, Pb, Se and the lower of Zn in the high temperature coke and the low temperature coke.

痕量元素在高、低温焦中受气化温度影响变化趋势相同，即随着气化温度的升高，As、Cd、Co、Cr、Cu、Mg、Ni、Pb、Se的相对富集系数增加，Zn的相对富集系数减小，Mn、Hg、V、Sr的相对富集系数变化很小。

There are other factors to influence the occurrence of trace elements. The higher gasification temperature, the higher the relative enrichments of As, Cd, Co, Cr, Cu, Mg, Ni, Pb, Se and the lower of Zn in the high temperature coke and the low temperature coke. The RRE of Mn, Hg, V, Sr are not affected by gasification temperature in the high temperature coke and the low temperature coke.

痕量元素在高、低温焦中受气化温度影响变化趋势相同，即随着气化温度的升高，As、Cd、Co、Cr、Cu、Mg、Ni、Pb、Se的相对富集系数增加，Zn的相对富集系数减小，Mn、Hg、V、Sr的相对富集系数变化很小。

The results show that the variograms of As, Cd, Pb and Zn exhibit anisotropy, which possibly is controlled by the distribution of ore deposits; Hg behaves strong nugget effect, which is influenced by smallscale factors, and the further study should increase the sample density.

结果表明，As、Cd、Pb、Zn元素的变异函数表现为各向异性，其方向性可能主要受矿床分布控制；Hg元素块金效应较大，表明其受小尺度因子影响较大，其进一步分析须增加采样密度。

The mobile fractions of heavy metals, namely EXCH, CAR,FeMnOX, and OMB, also influenced their leaching concentrations. Especially the EXCH andFeMnOX of Cu, Zn and Pb were negtively correlated with their contents in soil solution.The bioleaching with Thiobacillus ferrooxidans was used for decreasing concentrations of heavy metals in sewage sludge.

土壤中EXCH、CAR、FeMnOX及OMB形态重金属的变化与其溶出量显著相关，特别是以EXCH与FeMnOX形态存在的Cu、Zn、Pb含量的变化均与其溶出量呈显著负相关关系。5、利用以FeSO_4为底物的氧化亚铁硫杆菌对污泥进行生物沥滤去除重金属。

And ZH_5 [Ga(H_2O)CoW_(11)O_(39)]·xH_2OZ=Zn~(2+, Ni~(2+), Mn~(2+) by double decomposition, Which is so far un —reported yet, its characterrization by IR, UV, X—ray diffraction and DTA were studied.

用复分解法制备了未见文献报道的ZH_5[Ga(H_2O)CoW_(11)O_(39)]·xH_2OZ=Zn~(2+、Ni~(2+)、Mn~(2+)。研究了它们的红外、紫外、x—射线粉末衍射和差热性质。

The results showed that the average Zn content was between 75.0 and 160 mg/kg in this area.

结果表明，该区土壤Zn平均值范围在75.0~160 mg/kg之间。

The results showed that the toxicity of Cd was greater than that of Zn.

结果表明，Cd对草鱼的毒性大于Zn。

According to the correlation analysis, three elements Pb, Zn and Cu are related to each other.

相关性分析显示，Pb， Zn， Cu 3种元素之间具有较高的相关性。

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。