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The kinetics of reconstitution of apoacylase with either 〓 or 〓 and the inactivation of the 〓 reconstituted enzyme by 1, 10-phenanthroline has been studied by following the substrate reaction continuously in presence of the metal ion or OP respectively. Although the native 〓-containing and the 〓-reconstituted enzymes have closely similar Michaelis constants and maximal velocities, the kinetics for both the inactivation by OP and the reconstitution of the apoenzyme with the metal ions differs considerably.

虽然钴重组的氨基酰化酶与天然含锌的氨基酰化酶在催化活性上比较相近，但两种酶在去金属失活动力学机制以及去金属失活的氨基酰化酶与两种金属离子重组复活的动力学过程均存在较大的差异，说明锌在氨基酰化酶中的作用比较复杂，并不能完全由钴替代。

We make a concise review of this method and use it to calculate the radiative decays of the vector mesons, the baryon magnetic moments, the isospin symmetry breakings in π,ρsystem and πNN coupling constants. All of our results agree well with data.

我们对这一方法作了扼要的评述，应用它计算和分析了矢量介子的辐射衰变宽度，重子磁矩，π和ρ体系的同位旋对称性破缺以及πNN 耦合常数的同位旋对称性破缺等，都得到了与实验符合得很好的结果。

In the second chapter, we first report the electronic structure study on the critical stability constants of the complexing reactions of aluminum and copper ions with a series of chelators.

在第二章中，我们首次报道了运用电子结构理论研究铝离子、铜离子和其系列螯合物结合反应的稳定常数。

In this work, the copper binding capacity of several complexing agents of known stability constants was determined.

在这一工作中，测定了几种已知稳定常数的络合剂对铜的束缚能力。

And then, nine elastic coefficients and all of the technical constants of orthotropic condyles were calculated.

结果：获得了山羊髁突的体积密度、声波在髁突不同方向上的传播速度、羊髁突作为正交各向异性体的9个弹性系数即c11为4.19±0.12，c22为4.60±0.21，c33为3.25±0.18，c44为0.95±0.05，c55为0.68±0.04，c66为0.86±0.03，c12为1.99±0.05，c13为1.12±0.05，c23为1.39±0.02，及全部技术常数。

We will see now how crypto algorithms can be identified using the constants they use.

现在我们要知道怎样利用加密算法使用的常量来鉴别加密算法。

According to the experimental results the reaction mechanism of gasification is proposed: firstly, the catalyst releases an oxygen atom from its rich-oxygen site to combine with a carbon atom and create a CO, then the CO molecule desorbs from the catalyst surface; next, the catalyst absorbs a CO2 molecule; and finally on the catalyst surface another CO molecule is created and the original rich-oxygen site gets an oxygen atom. On the basis of gasification process the material balance equations were built, which were solved by using numerrical integral methods and the reaction rate constants for four steps were obtained: they are 0.0703mol·g-1·min-1·kPa-1, 0.0959mol·g-1·min-1·kPa-1, 0.00539 mol·g-1·min-1 and 0.0321 mol·g-1·min-1·kPa-1 respectively.

根据实验结果推导得出了该反应过程是催化剂表面富氧活性部位先与煤焦反应生成一个CO分子，然后此CO分子从催化剂表面脱附，接着催化剂吸附气态的CO2生成一个CO并且夺得一个氧原子实现自身还原的过程，在此基础上建立了煤的催化气化的物料平衡方程组，对各步骤的反应速率常数进行了求解，在本文采用的实验条件下，各反应步骤的反应速率常数分别为0.0703 mol·g-1·min-1·kPa-1；0.0959 mol·g-1·min-1·kPa-1；0.00539 mol·g-1·min-1·kPa-1； 0.0321mol·g-1·min-1·kPa-1。

The results indicated that the dopings of appropriate amount of rare earth ions improved the dielectric constants, where the optimal doping concentratrations of Er3+ and Eu3+ ions were around 4.5% and 5.7%, respectively.

结果表明，稀土离子的适量掺杂使BST薄膜介电常数有所提高，其中， Er3+和Eu3+的最佳掺杂浓度分别为4.5%及5.7%左右时，介电常数值达到最高。

This paper analyses elastics constants matrix of the fracture media with random and two direction under the theory of fracture media by Hudson.

作者在 Hudson关于裂隙介质假设的条件下，分析了含随机取向裂隙介质和两组取向裂隙介质的弹性常数矩阵。

The Kalman filter and factor analysis methods combined with UV/vis spectrophotometry were proposed for estimating the chemical equilibrium constants of some analytical reagents.

利用卡尔曼滤波方法对滴定分析、化学平衡与色谱分析中重叠峰的解析进行了研究，拓广了卡尔曼滤波在化学中的应用领域。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。