查询词典 Zn

Since a large amount of epithermal deposits were discovered in circumpacific area in 1970s',the epithermal deposits have become a significant industrial type for hosting precious metals deposits and Cu,Pb,Zn non-ferrous metals deposits.

自20世纪70年代环太平洋地区发现大批浅成低温热液型矿床以来，浅成低温热液矿床业已成为贵金属矿床和Cu、Pb、Zn等有色金属矿床的重要工业类型。

The erosion experiments of K, Na, Zn and Pb to refractory bricks used in blast furnaces of KISCO are performed separately and combinedly to determine the effects of temperature and time on erosion by these hazardous elements.

针对昆钢高炉使用的耐火砖，进行了K，Na，Zn，Pb单独和混合作用的侵蚀实验，考察了时间、温度对侵蚀的影响。

Five dominant species including 〖WTBX〗Commelina communis,Elsholtzia haichowensis,Silene fortunei,Polygonum perfoliatum〖WTBZ〗 and 〖WTBX〗Kummerowia striata〖WTBZ〗 were found to have high concentration of total Cu,Pb,Zn,Cd,Cr.

结果表明，鸭跖草等5种植物对重金属Cu、Pb、Zn、Cd、Cr都有程度不等的高量积累，尤其是铜元素，其最高积累量出现在海洲香薷根部，达到844.65 mg/kg，是一般植物Cu含量（5~25 mg/kg）的33.8~1689倍；而在同样条件下，As在5种植物体内的含量为018~098 mg/kg，远远低于As在一般植物中的含量（＜10 mg/kg），这说明这些植物对As可能具有某种规避机制。

Puertin is representative of isoflavone compounds. To study the mutual reaction between puertin and Cu, Ca, Fe, Zn, Al, and Mg which exist in Pueraria, methods of conductometric titration, spectrophotometry. and pH-potentiometric titration is used.

以葛根素作为异黄酮类化合物的代表，用电导法、分光光度法、pH电位法研究葛根素与葛根中含量较多的微量元素Cu、Ca、Fe、Zn、Al、Mg在水溶液中的配位作用，计算了金属配合物的稳定常数。

The promoting effect of Zn on liquid phase hydrogenation of crotonaldehyde over amorphous Co-B catalysts has been investigated.

考察了Zn的两种不同修饰方式对非晶态Co-B催化剂上巴豆醛液相加氢性能的影响，并采用ICP， XRD， DSC， XPS等手段对催化剂进行了系统的表征。

First, some critical problems in crystal growth like crystal seeding, Zn dephlegmation, geometrical selection and temperature fields are discussed in theory, and the possible kinds of defects appeared in crystal growth progress and the reasons are carefully researched. To control the concentration of Cd vacancies, a new method by which the Cd vacancies were compensated with excess Cd in the Cd rich starting materials has been developed, and a new kind of two-area tube furnace with good linear temperature distribution was designed.

首先，本文从理论上对坩埚下降法生长碲锌镉单晶体中的成核、Zn分凝、几何淘汰生长与温场等关键性问题进行了讨论，对在生长过程中可能出现的各种缺陷类型和形成原因进行了详细分析，提出了碲锌镉单晶体生长过程中Cd空位缺陷控制原理及方法，并针对坩埚下降法生长特点自行设计了两区域独立加热管式生长炉，获得具有较好线性分布的温场。

Theenvironmental risk of leachate from landfill with different operation modes depend ontheir accumulation amount rather than their sudden concentrations and fraction.(7)The high SRB metabolism activity and the accumulation of metabolitewere the main reasons of in-situ precipitation phenomenon of Cu~(2+) and Zn~(2+) inlandfill refuse in bioreactor landfill. Heavy metals in bioreactor landfill havemechanism of in-situ immobilization controlling by SRB metabolism. Thepredominant SRB in landfill refuse belongs to Desulfovibrio vulgaris sp.

7生物反应器填埋场中较高的SRB代谢活性及其逐步累积的代谢产物硫化物是填埋垃圾中的Cu~(2+)和Zn~(2+)形成硫化物沉淀而发生重金属原位固定现象主要原因，生物反应器填埋场中重金属存在原位固定的硫酸盐还原菌调控机理，初步从形态判断填埋垃圾中的优势硫酸盐还原菌属普通脱硫弧菌属Desulfovibriovulgaris sp。

Two inorganic-organic hybrid materials,〓(C〓H〓O〓=isophthalate or terephthalate), have been assembled for the first time from the new type metal center Zn〓 and benzene dicarboxylate links.

首次以新型金属中心Zn〓分别和间苯二甲酸、对苯二甲酸配体合成了2个配位聚合物无机-有机杂化材料。

FGX3C-MD The magnetic blowing jiggle button swich is the latest designed and manufactured by the factory.it's widely used in the high-pressure disjunctor of the VSI,ZN.

FGX3□-MD磁吹型微动按钮开关是本厂最新设计制造的，广泛用于VS1、ZN型等高压真空断路器，可直接分断DC250V 1.5A、DC110V 3A

Results showed that cultivation of milk vetch significantly lowered concentrations of heavy metals and soil comprehensive pollution index, and more or less the same as the treatments of organic reagents, except for effect on decreasing Zn and Cd concentrations and comprehensive heavy metal pollution index, which were not so big in scale. When compared with the treatment of milk vetch + organic reagents, the treatment of milk vetch did not differ much in heavy metal concentrations and comprehensive pollution index. Elsholtzia splendens Nakai ex F.

结果表明，紫云英处理显著降低土壤重金属浓度和土壤综合污染指数，下降幅度与CK比呈极显著差异；除土壤Zn、Cd浓度和土壤重金属多因子综合污染指数的下降幅度显著低于有机试剂处理，其他与有机试剂处理均无显著差异；紫云英处理与&紫云英＋有机试剂&的交互作用处理相比，土壤重金属浓度和土壤综合污染指数的下降幅度无显著差异。

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。