使了解

The topic sentence of the text is .

此活动的目的是使学生进一步加深对文章内容的理解，培养学生从整体把握文章主题或大意的能力，了解文章的结构，把握文章的内在联系。

This paper, which focused on the structure optimization theory and method, has finished such studies as follows: The three dimension model has been built, which provide the necessary conditions for the building of the dynamics equivalent model. By the launch dynamics simulation, the loads of the key joints when the rocket is launched has been got, which provide the necessary data for the finite element analysis and the structure optimization. The finite element model of the excess weight parts of the rocket has been built, buy the finite element intension analysis of the model in two conditions, the displacement and the stress of the key points have been got, which make us know the distributing of the stress and the transmogrification of the part. To satisfy the intension and the precision design request and to decrease the weight of the part as many as possible, the part has been topology optimized by the structure optimization theory and method. After that, the new model has been analysis in structure and launch dynamics. The contrast of the character change of the old part and the new part and the influence on the rocket system have been studied.

本文以结构优化理论和方法为核心，主要做了以下工作：建立了某自行火箭炮全炮三维实体模型，为建立该火箭炮系统的动力学等效模型提供了必要条件，进行了发射动力学仿真，得到该火箭炮发射装置各关键连接部位在发射状态下的载荷，为有限元分析和结构优化提供了必需的数据；建立了该火箭炮发射装置超重部分的有限元模型，分两种工况，对模型进行了有限元强度分析，得出了关键部位的位移和应力值，对其的应力和变形分布有了具体的了解；运用结构优化的理论和方法，对该火箭炮发射装置超重部分进行了拓扑优化，使其在满足强度和精度的要求下尽可能多地减轻重量，对优化后得到的模型进行了结构分析和发射动力学分析，对比了该部件优化前后的特性变化以及对火箭炮系统的影响。

She provides Van Helsing insight into the world of Transylvanian vampires.

因此她提供消息给凡赫辛，使他更了解特兰西凡尼亚森林中的吸血鬼世界。

For this strategy to be effective,however,cell biological information about tubule development within the diseased organ is needed.

但是，要使这种治疗方案行之有效，需要了解关于患病肾脏肾小管发育的细胞生物学信息。

I also make the turbogenerator rubbing type of fault mechanism and the characteristics of vibration signals a certain understanding.

同时也使我对汽轮发电机组碰摩类故障的机理及其振动信号的特征有了一定的了解。

His turbulent experiences enabled him to know better the darkness of human society and people's sufferings.

不平凡的经历，使他了解了人间的黑暗和人民的苦难。

My brother pig always jumped onto the roof of the house to mimic the siren's sound at ten o'clock in each morning. The workers whoever heard it came back---it is an hour and a half earlier than the sounding of the siren. Frankly speaking, brother pig was unblamable. After all, he was not a boiler, and the sound he made was a bit different from that of siren, still, the old fellows said it was hard to identify.

第二， "知青"，"肉猪"这些在汉语中为人所熟悉的词，对不了解中国文化/行业文化的人，他们不清楚词语所指，因为中国内地的人往往会把一个稍长的名词简化成二字，如"知识青年"简化成"知青"，时常会误导人们使其以为是某新造之词，从而难以下笔；猪贩知道"肉猪"，但此词也可能是出现在某个地区对阉猪的特有称呼，如果没有加以解释，译者必会大惑不解。

Studying at UNE has helped me understand more about Australian accounting and different ways of thinking and working.

在新英格兰大学读书不仅使我对澳洲的会计制度有了更深入的了解，同时更让我感受了澳洲人不同的思考和工作方式。

The Life Power (38 pages) The purpose of our work is the unfoldment of a higher consciousness, in order that we may obtain a better understanding of cosmic law expressed through human personality.

生命权(第38页)的目的，我们的工作是unfoldment一个更高的觉悟，为了使我们可以更好地了解宇宙的法的通过表示人格。

Two mode of plastid inheritance, uniparental maternal and biparental inheritance, were discovered in angiosperms at the beginning of this contury, and our knowledge of the mode and cytological basis of cytoplasmic inheritance, esp. plastid, has been improved in many respects following the new cytological and molecular techniques, eg. electron microscopy, DNA fluorescence and RFLP.

近几年由于电镜、DNA的荧光检测及RFLP等新的细胞学和分子生物学技术的发展，使对植物细胞质遗传形式及其细胞学基础有了一定的了解，但多是单一的方法或对雌、雄配子发生、发育个别发育时期研究的结果，对大部分植物种的质体遗传方式或细胞学基础仍不清楚，在有些植物种间应用不同的研究方法得出的结论也不一致。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！