Objective To understand the social and psychologic status of maintenance hemodialysis patients for improving their quality of life.
目的从多角度了解维持性血液透析患者的社会心理状况，为进一步提高其生活质量提供资料。
It has very important significance to understand the species and prevalence status of infection sources of schistosomiasis and to analyze their role in the transmission.
了解掌握血吸虫病流行区传染源的种类和感染状况，分析各宿主在传播中的作用具有重要的现实意义。
It is of great academic significance to understand the current research status of diplomatic studies for their fur ther improvement.
了解当代外交学研究的现状对我们进一步完善学科建设具有十分重要的意义。
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