目的明确的

It could provide theoretical instruction about postabortal announcements and the choice of method of contraception.Methods A retrospective analysis of 488 cases who suffered from ectopic pregnancy in affiliated Hospital of Hangzhou Teacher University from January 1997 to December 2006 was done.

目的 探讨异位妊娠诊断、发病相关因素及治疗方法，有助于进一步明确异位妊娠发病率增加的原因，并为宣教流产后的注意事项和避孕方法的选择提供理论指导。

Abstract］Objective To investigate the relevant factors of ectopic pregnancy and treatments and reveal causes of the increasing incidence.It could provide theoretical instruction about postabortal announcements and the choice of method of contraception.

目的 探讨异位妊娠诊断、发病相关因素及治疗方法，有助于进一步明确异位妊娠发病率增加的原因，并为宣教流产后的注意事项和避孕方法的选择提供理论指导。

Objective This study works on the target of NRE in order to illuminatethe proteinic mechanism , approach the regulation of lipidmetabomlism disorder,seek a proteinic regulation target for lipidmetabomlism,direct the development of descendens blood fatdrugs.

目的：探讨新生鼠提取液对高脂血症模型大鼠降血脂作用的具体靶标，明确高脂血症、脂肪肝在蛋白质水平的发生机理，进一步阐明NRE在蛋白质水平调整血脂代谢的作用机制。

The minor manifestation of the condition is the most common and is characterised by small, shallow, round or oval lesions that are surrounded by a raised erythematous halo and are covered by a grey-white pseudomembrane.

RAU的病因目前尚未明确，故而现有的治疗均不理想，难以达到彻底根治。临床上多采取局部治疗结合全身治疗达到延长其间歇期，缩短发作期，缓解疼痛的目的。

Acyclic retinoid, a novel synthetic retinoid, was reported to prevent the recurrence of human HCC after surgical resection of primary tumors, but the molecular mechanisms are yet to be el...

本研究的目的是，明确ACR预防HCC术后复发的分子作用机理，和其作用的标的分子，并以此为线索寻找出更有效的HCC治疗方法。

Purpose In this research, we applied three modeling methods to strive for accurately forecasting thepotential distribution of invasive species-Solenopsis invicta in China. Furthermore, we also researchedthe relationship between potential geographic distribution of S. invicta and environmental factors indetail to understanding how environment factors restricted distribution of Solenopsis invicta innon-suitable areas of Chinese mainland. The achievement of research provides a theoretical basis, whichcould guild the next step for the prevention and control stratagem ofS.

研究目的与意义：本研究通过3种不同机理的分析生物分布预测模型进行建模分析，力求准确预测入侵物种红火蚁在中国的潜在分布范围，并明确红火蚁潜在地理分布与环境因素之间的关系，同时找出在中国大陆地区非适生区限制其分布的影响因素。

In many countrie's reform the experimental teaching has been incorporated into the basic education curriculum reform objectives and the purpose of teaching has been stated cleariy and specifical.

在改革中有许多国家已经把实验教学纳入基础教育课程改革的目标之中，并对实验教学的目的有着比较明确、具体的表述。

Objective To study the effects of subretinal fluid on the proliferation of retinal pigment epithelium cells and on the activation and translocation of protein kinase C; to investigate the relationship between the proliferation and the changes of PKC in the RPE cells; and to study the effect of PKC inhibitor.

目的 探讨视网膜下液能否引起体外培养的视网膜色素上皮细胞增殖及在其增殖过程中是否出现蛋白激酶C的激活和转位，进一步明确RPE细胞增殖与RPE细胞中PKC信号系统变化的关系及PKC抑制剂的作用。

Objective:(1) To analyze the relationship between CT perfusion parameter and some factors affecting prognosis of gastric carcinoma by multislice CT perfusion imaging and triphase incremental scanning.

目的： 1。通过胃癌16排螺旋CT灌注成像研究，探讨胃癌灌注参数与影响胃癌预后的几个病理因素之间的相关关系，明确胃癌灌注成像的临床应用价值。

Taking full consideration of the many risk factors in road traffic,this law codifies various preventative measures in legal terms, in particular with clear provisions for the safety of vulnerable road users such as pedestrians.

这部法律以保护人身安全为首要目的，在充分考虑道路交通中各种危险因素的基础上，将各项预防措施以法律的形式加以规范，特别是对行人这样的弱势道路使用者的安全保障做了明确规定。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。