第一步

The first is a dissolution of argentite acted by Fe3+ ion in acid solution.

推导出其氧化溶解过程，主要分两步，第一步是硫化银在酸性铁离子的作用下溶解。

You might solve your problem in the first brainstorm, but if not, go on to the next step.

你也许在第一步就可以解决你的问题，如果没有，接着进入第二步。

The wall of the burning chamber was pitted at the beginning then gradually burnt through.By means of the Bunsen burner,tubular furnace and XRD,SEM,EDS,this special type of high-temperabure destruction was studied.It was found that the phenomenon is resulted from the combined action of CO and lower hydrocarbon on Ni-Cr alloy.Firstly,Ni-Cr alloy is carbonized and selectively oxidized by CO to produce Cr2C,Cr3C2 and Ni-Cr2O3,while the capillary cracks in the surface layer are formed simultaneously.

作者利用几种现代手段和试验方法，对这一燃烧破坏现象进行了系统地模拟研究，发现这是CO和低分子烃在高温下对合金共同作用的结果：第一步CO作用使合金表层发生氧化和碳化，造成裂隙；第二步低分子烃扩散进裂隙并在Ni-Cr2O3微粒的催化下，裂解生在石墨炭并包复在Ni-Cr2O3微粒周围，体积增大。

Based on groups of single factor experiments, the yield could reached to 88.8% with the conditions: sodamide: cedrol :dimethyl sulfate = 1.6:1:0.9, refluxed 2h in first step reaction, and reacted at room temperature 1h after instillation of dimethyl sulfate, followed refluxed 1h in the second steps.

通过多组单因素实验发现氨基钠：柏木脑：硫酸二甲酯的摩尔比为1.6：1：0.9，第一步反应条件控制在回流2h，第二步反应先室温（25℃）滴加硫酸二甲酯后反应1h，再回流反应1h，得率可达88.8%。

The first step in consecration is laying everything down at the feet of Jesus.

奉献的第一步是把一切所有都放在耶稣的脚前，第二步是顺服他的命令。

At the first step, the predicted value is solved, which is a constant function on each triangular element.

第一步是求出单元常值近似的预估值，第二步是求Galerkin近似的修正值。

We firstly look back thebirth of SD method,and then present the SD scheme presented by Johnson et.al.forlinear problem to explain the basic idea and implementation:At step 1,we change the testfunctionwhere(1,β)t is the streamline or character direction decidedby hyperbolic operator of the continuous problem,therefore the SD method belongs tothe Petrov-Galerkin method;At step 2,we adopt time-space finite element space,whoseelement is only continuous in space variables x but discontinuous in time variable t.

首先回顾了SD方法的产生过程，然后以线性问题为模型，描述了SD方法的基本思想和具体实现：第一步，将标准有限元方法的检验函数ν改成其中(1，β)t是连续问题的双曲算子部分所确定的流线方向。换言之，SD方法是一种Peterov-Galerkin有限元方法；第二步，采用时空有限元空间，其元素关于空间变量x是连续的，但关于时间变量t仅分段连续。

The learning process of the rules is made into two steps by RENFIO:(1) Get the combination of each classs description which has the larger implication.(2) Find the best description of each class, and that is finding the best rales cover the training data.

RENFIO算法将学习过程分为两步：第一步，对每一类样本取蕴含度大的简单概念作组合；第二步，找出每类的最好描述，即与训练样本拟合得最好的规则。

We adopt the method of 'piling-up, connecting, and putting-together' which uses 'room type module' as a basic design unit. The first step of this method is to combine from vertical space to basic objects; the second step is to use stair well to connect those basic objects from horizontal space to get series of room units; the final step is to consider both horizontally and vertically to get a complex structured house.

采用&叠&、&联&、&拼&设计方法，即采取以&户型模块&为基本设计单元，第一步从竖向空间进行组合，得到具有高度空间变化的住宅基本体；第二步从水平空间，通过楼梯间串联各基本体，得到多种形式的住宅单元体；第三步再从水平空间（也考虑竖向空间层数的变化）组合各单元体，得到一栋住宅造型多变的住宅组合体

A player who comes to a stop on the count of two, with neither foot in advance of the other, may use either foot as the pivot foot.

其实有关&行进中接球&这个问题根本没什么好争论的，常打球的同学，接受过基础篮球训练的同学都知道，在行进过程中接到球之后走两步出去，并且以第一步落地脚作为中轴脚开始假动作，这是非常标准的&安全步接三威胁&。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。