离子的

The reaction mechanism between nickel ion and butynediols in the electroless plating process was analyzed. The results show that the change of BOZ concentration is a quasi first-order reaction, the change of the nickel ion concentration is related to the BOZ density, and this change belongs to a higher order reaction. The reaction rate equation was determined as dC/dt=-8.585×10^(-4)+1.188×10^(-4)t-4.64×10^(-6)t^2+5.8×10^(-8)t^3-2.3×10^(-11)t^4. The activation energy of this process decreases as temperature increases, and it decreases with the BOZ concentration as 64-423 mg/L, it increases with the BOZ concentration as 123~240 mg/L. The S value is positively correlated to temperature, when the temperature is 80℃, the reaction rate and S value are the largest; while when the temperature is above 80℃ and BOZ concentration is over 160 mg/L, S value and the reaction rate decrease gradually.

结果表明，镀液中BOZ浓度的变化是准一级反应，镍离子的浓度变化与BOZ的浓度有关，属多级反应，其反应速率方程为dC/dt=-8.585×10^(-4)+1.188×10^(-4)t-4.64×10^(-6)t^2+5.8×10^(-8)t^3-2.3×10^(-11)t^4，反应体系的活化能E随温度的升高而减少，随BOZ浓度的变化而变化：当BOZ浓度在64~123mg/L时，E线性减少；在123~240mg/L时E线性增加。S随温度的升高而增加，当温度达到80℃时S值最大，反应速度最大；当温度超过80℃，BOZ浓度大于160mg/L时，蝎的值逐渐减少，反应速度降低。

It was rev ealed that:cuprite,malachite and tenorite are the three main kinds of copper-bea ring minerals which would be supersaturated when Cu concentration in the solutio n is high enough(higher than 0.0016 mol/L,0.0079 mol/L separately) under the stu dy conditions.Copper exists in the solution mainly as the species of CuCO3 ,Cu2+ and CuOH+.The corresponding content of CuCO3 would be decrea sed following the deposition of the copper-bearing minerals,nevertheless,Cu2 + and CuOH+ would be increased.

模拟结果表明，在土壤中常见的E h和pH及研究区的年平均温度条件下，溶液中铜离子的含量达到一定的浓度时，可以生成赤铜矿(当Cu≈00016 mol/L)、孔雀石及黑铜矿(当Cu≈0 0079mol/L)等次生矿物，溶液中Cu的存在形式也发生了变化，即CuCO3所占的比例不断减小，而Cu2+和CuO H+的含量则相继增高，且Cu2+的增幅大于CuOH+。

It was discussed that the main factors having effect on the vulcanization time of RTV block methyl silicone rubber, such as the mol ratio of ethoxyl and silicone hydroxyl, the pH value of methyltriethoxysilane, and the content of iron ions impurity in methyltriethoxysilane, temperature, moisture, and the quantity of catalyst.

讨论了影响甲基嵌段室温硫化硅橡胶硫化时间的主要因素，如：乙氧基与硅羟基的量之比，甲基三乙氧基硅烷低聚物的pH值、铁离子的含量，以及温度、湿度和催化剂的用量等；并介绍了预防和控制这些影响因素的方法。

It demonstrates the existence of two type distorted MnO〓 octahedra in the Ca-deficient system that the infrared transmission spectra show two stretching phonon modes of MnO〓 octahedra and the second resistivity peak nearly does not change under magnetic field.

根据以上实验结果，我们提出在缺钙稀土锰氧化物体系中存在两类不同的畸变MnO〓八面体：一类是Mn〓离子的JT效应导致的MnO〓八面体畸变；另一类是Ca位空穴引起的MnO〓八面体悬挂顶点氧导致的MnO〓八面体畸变。

Greenhouse soils displayed apparent phenomena of salt accumulation in topsoil (0–20cm) and salt leaching downwards to the bottom of the soil (80–100cm), especially NO3- that seriously affected the quality of groundwater in the area. Apart from HCO3-, the contents of NO3-、SO42、Cl-、Ca2+、Mg2+、K+、Na+ were increased to different degree in greenhouse soils, and NO3-、SO42- and Ca2+ were the major ions in the soils.

此外，盐分离子的大量累积和向底层迁移，特别是NO3-的淋溶已严重影响到部分地区的地下水水质。4）设施栽培后，土壤中的NO3-、SO42-、Cl-、Ca2+、Mg2+、K+、Na+均有不同程度的累积，阴离子以NO3-和SO42-为主，阳离子以Ca2+为主。

The different deposition behaviors were dependent onpH of solution, mixed potential of redox couple, dissolution rate of silicon, complexformation and equilibrium potential of metal ion.

不同的沉积行为取决于溶液的pH值、体系的混合电位、硅的阳极溶解速率、金属离子的络合状态和还原电位。

The identity of the gene encoding the mitochondrial K-activated acetaldehyde dehydrogenase K(+-ACDH of Saccharomyces cerevisiae has been confirmed. The gene is situated on the right arm of chromosome XV, bears the systematic name YOR374w and the deduced product shows significant homology to other members of the S.

中文摘要酵母菌醛类去氢酶4（YOR374w）是一种位在粒线体内的去氢酶，需要钾离子的活化，以及NAD+或NADP+当辅酶，在乙醇的代谢途径扮演很重要的角色，尤其是以乙醇当碳源的环境下。

The authors reported as follows: Results showed that removing hardness ions with a household water softener did not lead to a pattern of higher metal leaching from various home plumbing materials containing lead, copper, and zinc.

作者报道中写到：结果显示除去硬度离子的家用软化水不会对各式各样的含有铅铜锌的家庭管道的材料造成更高的金属溶解度。

In the study on hyperfine structure,we computed the hyperfine interaction diagonal and off-diagonal constants of the 1s~22s2p~3P_(0.1)levels,and the effects of electron correlation and Breit interaction on these have been analysed.

在超精细结构的研究中，我们系统地计算了Z=20-83范围内24个类铍离子的ls~22s2p~3P_(0.1)态的超精细结构，得到了与其它理论和实验符合很好的结果，并分析了不同电子关联模型和Breit相互作用对超精细结构的影响。

Based on the crystal field theory, perturbation formulas of the spin Hamiltonian parameters g-factors (fourth-order) and the hyperfine structure constants (third-order) of 3d9 ions under tetragonal symmetry are established for the cases of small spin-orbit coupling coefficients and large spin-orbit coupling coefficients of the ligands.

本文基于晶体场理论，在较统一的理论模型和计算方法基础上运用微扰法分别对配体旋轨耦合系数较小和配体旋轨耦合系数较大的情况建立了3d9离子的自旋哈密顿参量g因子的四阶微扰公式和A因子的三阶微扰公式。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。