查询词典 Zn

The relationship between the effective application of Zn fertilizer and the yield of maize grown in was studied through pot and field experiments in phaiozem and chernozem in Songnen Plain.

通过田间试验，研究了松嫩平原黑土和黑钙土锌肥的有效施用条件与玉米产量的关系。

Chinese traditional herbal drugs for relieving away heat and toxic were treated with cineration,and the residues were dissolved by HNO_3.Eleven trace elements including,calcium,magnesium,manganese,copper,iron,zinc,cadmium,lead,cobalt,nickel and chromium in twenty sample solutions were determined by flame atomic absorption spectrometry.

采用灰化法处理样品，HNO3溶解灰化残渣，用火焰原子吸收光谱法测定了射干、白头翁、山豆根、鱼腥草、连翘、大青叶、车前草、野菊花、金银花、莲子芯、蒲公英、板兰根等20种中草药中的Ca，Mg，Mn，Cu，Fe，Zn，Cd，Pb，Co，Ni和Cr共11种微量元素。

For example, the coefficient of variation of Cd is as high as 212%, reaching the level of serious pollution.

结果表明：AS、Cd、Cr、Pb、Zn显示了很强的富集且分布极不均匀，如Cd的变异系数高达212%，且已达到了严重污染的程度。

At the end of this chapter, the research object and content of this paper are also described concretely.

对所得系列的催化剂的催化活性进行了评价，筛选出了催化活性较高的Zn-Cr系列催化剂。

The sulfate-reducing-bacteria were immobilized in polyvinyl alcohol to treat wastewater containing zinc. The effects of different crosslinking reagents on the conglobation, cohered efficiency of the carbon source, reduction ratio of sulfate, removal ratio of Zn, and COD of drainage were considered.

摘 要：以聚乙烯醇为包埋介质，对硫酸盐还原菌进行固定化处理；以含锌废水为处理对象，考察不同交联剂对成球性能影响、营养源内聚效果、硫酸盐还原效果、锌离子去除率和出水COD等因素。

In Chapter 2 and Chapter 3, we give the solutions of integral form on Orbifold T2/ZN(N = 3,4,6).These solutions include all the projection operators which have minimal trace and the induced matrices of which are continuous functions of kq. In terms of this kind of solution one can construct various closed form of solutions.

在第二章和第三章中我们给出了T~2/Z_N(N=3，4，6)上的以积分形式表达的解，这些解包括所有具有最小迹且诱导矩阵是kq参量连续函数的投影算子，并且可以由它进而构造各种有限形式的解。

And the removal rates of Cr and Zn all exceed 60%.

浓度较高的铬、锌去除率均超过了60%。

The color reaction of Zn(superscript 2+)-SCN(superscript -)-crystal violet in the presence of β-cyclodextrin and arabic gum has been studied and a new spectrophotometric method has been developed for the determination of zinc in water.

研究了在β-环糊精和阿拉伯树胶存在下，锌与硫氰酸盐和结晶紫的显色反应，建立了光度法测定水中微量锌的新方法。

If you take Zn, you might also need to supplement Cu too.

如果你把锌，您可能还需要补充铜太多。

The results indicated that the content of lead and cadmium in all surveyed vegetables exceeds the limits of their standards out and away, the content of zinc only in root vegetable, shallot vegetable and leaf vegetables exceeds the limit of it standard a little, and the content of cupper in vegetables is under limit of it standard.

就一铅锌冶炼厂周边蔬菜对重金属的吸收与富集进行了研究，结果表明：所有被检测蔬菜中Pb和Cd含量严重超标；根类、葱类和叶菜类蔬菜中Zn含量有所超标，其它种类蔬菜一般未超标；蔬菜中的Cu含量未超标。

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。