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1·Concerns of the Dry-Cleaning Industry: a Qualitative Investigation of Labor and Management.

关切的干洗洗衣机行业：定性调查，劳动和管理。

2·Methods Mainly based on qualitative investigation, partly using quantitative investigation.

方法定性访谈为主，辅以定量调查。

3·The proposed method is more accurate than the qualitative investigation such as isotopic tracer.

该方法较同位素及综合示踪法定性分析更为精确。

4·Liquid fuels. qualitative investigation of sulphur in light hydrocarbons. plumbite method doctor test.

液体燃料。轻质烃中硫的定性测定。铅酸盐法博士法。

5·Methods: Qualitative investigation was carried out by team interviews and individual in-depth interviews.

方法：采用小组访谈及个别深入访谈定性调查方法。

6·Then this concept was brought into the research of public communication and became one of the most important points in qualitative investigation .

后来再被引入到大众传播研究中，成为了定性研究中的一个重要观点。

7·Many results on deeply qualitative investigation of models of biochemical reaction mechanism have been obtained by Chinese scholars in recent ten years.

近十余年来，我国学者对一系列重要的生化反应机理模型作了深入的定性分析，有的已经取得了完整的结果。

8·Through using the method of literature investigation, qualitative study, questionnaire and mathematical statistics, this paper made investigation on Yangge Exercise group and social control.

运用文献资料调研、质的研究、问卷调查和数理统计等方法，对秧歌文化、秧歌锻炼群体及其社会控制进行调研分析。

9·Adopting the research method, which combines investigation with research, qualitative analysis with quantity analysis and theory practice.

本论文采用了调查与研究，定性分析与定量分析相结合，理论性与实践性相结合的研究办法。

10·Dense monitoring is the qualitative base for investigation and it should not be simplified in supervising monitoring.

加密监测是重点原调查的质量基础，不能简化行事。