To explore the risk factors of pulmonary tuberculosis (PT) in the enterprises in Changde and to lay foundation for their prevention and control.
[目的]探索影响工矿企业工人结核病发病的危险因素，为结核病预防提供参考依据。
The paper combines with the issue needs and proceeds research for technology of designing and testing in order to lay foundation for the next step.
本论文结合课题需要，对实验台的设计和测试技术进行研究，以便为下一步工作打好基础。
In chapter 2, the configuration of the system is presented. Every part of the system is briefly discussed and lay foundation for the proceeding analyzing and studying.
第二章，给出了本文的系统结构简图，并对系统各个组成部分作了简要的说明，为进一步分析和研究奠定基础。
Through the exposition of the legislative status of our administrative legal responsibility system, lay foundation for the analysis of defects in our administrative legal responsibility system.
通过对我国行政法律责任制度的立法现状的阐述，为分析我国行政法律责任制度的缺陷奠定了基础。
Through the exposition of the legislative status of our administrative legal responsibility system, lay foundation for the analysis of defects in our administrative legal responsibility system.
通过对我国行政法律责任制度的立法现状的阐述，为分析我国行政法律责任制度的缺陷奠定了基础。
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