查询词典 Zn

According to logging results of 167 boreholes and chemical analyses of 24 369 samples as well as characteristics of element distribution at 4000 m, 3950 m and 3900 m levels, the deposit is characterized by alteration, mineralization and element geochemistry of the porphyry. Alteration and mineralization are spatially and temporally related to the augen quartz phenocryst-bearing hornblende-quartz diorite porphyrite (J3δομ).

根据167个勘探钻孔编录和化学分析（24369件化学分析样品）资料，以及对海拔4000m、3950m、3900m水平面的Cu、Au、Ag、Mo、Mn、Pb、Zn、W、K、Na、Ca、Rb元素分布规律的分析，显示矿体具有斑岩型矿床的蚀变、矿化以及元素地球化学特征，主要矿化和围岩蚀变在时间上和空间上均与含眼球状石英斑晶的角闪石英闪长玢岩(J3δομ)有关。

It shows that positron technique can\'t obtain information of O monovacany in ZnO single crystal.

单晶ZnO中的Zn单空位的正电子寿命是237ps，与文献中的230ps符合得很好。

In this article, a new analytical method for determination of the content of active manganese dioxide left in waste Zn-Mn battery was proposed by iodimetry combined with potential titration. The influence of reaction time, temperature and the quantity of potassium iodide were investigated.

本文提出结合电位滴定技术用碘量法测定废旧锌锰干电池锰粉中剩余活性二氧化锰含量的新方法，对方法中反应时间、温度、碘化钾用量等影响因素进行试验，确定了最优实验条件。

Methods: Panax ginseng and Panax ginseng fruit were grinded into powder, placed in the flask and pretreated with the solution of HNO3-HClO4 (4:1) on the electric heat plate. The contents of Zn, Cu, Mn, Fe, Ca, Mg, Cd, K and Na were determined by flame atomic absorption spectrometry.

将人参和人参果粉碎后置于锥形瓶中，分别在电热板上经硝酸－高氯酸(4：1)消解体系小火加热消解后，采用空气－乙炔火焰原子吸收光谱法测定。

The results show that the content of Zn and Ca in hair of high blood pressure group is higher than that of the normal blood pressure group.

为研究青少年高血压与头发微量元素的关系，对 5 0例血压偏高及 5 0例血压正常的青少年头发进行了 5种元素的测定。

The natural releasing processes of Pb, Zn and Cd in the slags can be primely described with minus-exponent equation.

长期的风化淋滤作用对重金属的释放有影响，矿渣层的重金属含量随时间的增长而递减，其自然释放过程可用负指数方程描述。

The evaluation of the joint toxicity of Cd and Zn was carried out based on the principle of the additive index of aquatic toxicological effects, and LC50 was obtained with the SPSS 11.5 software package by probit analysis of the bioassay.

在此基础上，根据水生毒理联合效应指数相加法原理，利用生物测定计数型机值分析得到毒性单位浓度LC50值进行判断。

With the co-precipitation, using cross experiment, constitute of catalyst (include 2 equations), proportionment of precipitator, aged time, calcine temperature, had been discussed-how to influence the activity of catalyst. The activity will be primed if prepareing the catalyst with CuO:ZnO:CeO_2=6:9:10, using NaOH as precipitator, aged time 3h, calcining the calatyst at 450℃.

在共沉淀法中利用正交试验对催化剂中各种物质的配比量、沉淀剂类型、陈化时间和焙烧温度这4种因素进行了4水平分析，结果显示制备催化剂时使用的金属盐Cu(NO_3)_2、Zn(NO_3)_2和Ce(NO_3)_3的物质的量之比符合n_1∶n_2∶n_3=6∶9∶10、并且NaOH溶液作沉淀剂、3h陈化后在450℃焙烧，制得的催化剂催化效果最好，在130℃时CO转化率即达到99％以上。

Silver has two forms in its occurrence:mainly in the form of silver-bear iug sulfosalts(pyrargyrite,freibergite and Ag,Zn-bearing tetrahedrite and others) discovered for the first time;secondary,in the form of impurities scattered in the memllic sulfides.

银主要以首次发现的含银硫盐矿物（深红银矿、银黝铜矿和含银锌黝铜矿等）产出，其次是杂质元素分散在金属硫化物中，银的含量按方铅矿、黄铜矿、闪锌矿、黄铁矿的顺序依次降低。

In the medium of dilute H 2SO 4, the fading reaction of pyrogallol red is oxdized by H 2O 2, which can be catalyzed by Zn 2+ has been studied.

研究了在稀H2 SO4介质中，Zn2 +催化H2 O2 氧化邻苯三酚红的褪色反应。

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。