第一步

But she cautions that this is only the first step in the first part of this clinical trial.

但她警告说，这只是在这一临床试验的第一部分的第一步。

The chapter 1 introduced the definition of life insurance and basic theory of life insurance. The chapter 2 make research of life insurance demand in China, firstly we analyze the relationship between the life insurance demand in China and savings deposit in urban in China and find savings deposit in urban has positive effects to the life insurance demand in China .

第一章介绍了人身保险的概念及基本理论，第二章对于中国寿险市场需求进行了分析研究，第一步，我们分析了我国人寿保险需求与储蓄存款的关系，发现储蓄存款对于我国人寿保险需求具有积极的影响。

It's become man's first outpost, our first footstep in space.

这里是人类在太空的第一个基地也是人类在太空的第一步

First time, the first step which treads for oneself....

第一次，为自己踏出的第一步。。。。

Meanwhile,having the first job is also the first stage of coming upon society,which we commence our own business and life,we all should be in full confidence in it Now,let's go into action.

同时，第一份工作也是踏入社会的第一步，使我们事业的开始，我们都应当充满信心。现在行动起来吧。

Firstly, based on the sliding mode control and backstepping technique, a new attitude tracking controller is derived to control the attitude motion of spacecraft, the stability of the system is analyzed via Lyapunov method and the reaction wheel dynamics is also considered from the real applications point of view. The whole design process is divided into two steps: the first step is to use sliding control technique to design suppositional adaptive variable structure controller; and the second step is to design attitude tracking controller based on SMC and backstepping technique. Numerical simulations are performed to show that both tracking maneuver and vibration suppression can be accomplished effectively.

首先，采用自适应后步法结合主动振动控制技术设计了姿态跟踪鲁棒控制器，基于Lyapunov方法分析了系统的渐近稳定性；在此基础上，显性地考虑了执行机构动态特性问题，将整个设计过程分为两个步骤：第一步采用滑模控制技术设计了变结构虚拟控制器，给出自适应控制律的设计方法；第二步，将后步法与滑模控制技术相结合，设计了姿态跟踪鲁棒控制器，给出飞轮电压的输入算法及稳定性分析；最后，将提出的控制方法应用于挠性航天器的姿态跟踪控制，通过数值仿真对所提方法的可行性与有效性进行分析和验证。

The second step is carried out by treating the bleached pulp obtained from the first step, with a solution of sodium hydroxide and hydrogen peroxide.

通过用氢氧化钠和过氧化氢的溶液处理第一步中获得的漂白纸浆而进行第二步。

PCR amplifications were conducted by recombining multiple PCR and unique PCR, in order to minimize the usage of DNA templates.

第二步是把第一步筛查到的SNP，在患病人群和健康人群中分型确认该位点是否与鼻咽癌有关。

The former is a physical process. According to the variety and the condition of cultural relic and surface characteristic, the conservators choose the appropriate tool used for surface cleaning.

文物的清洁处理，是文物保护工作中的第一步，也是最重要的一步，其处理效果将直接影响纺织品文物的保存和展示，是整个保护过程的关键，尤其对于丝织品文物。

The first step is important because it determines how high the starting point of the second step.

第一步很重要，因为它决定了第二步的起点是多高。

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。