Method Using rapid policy research approaches, including some qualitative methods, literature review, structured focus group discussion and field study.
方法采用了快速政策研究方法、文献分析法、结构式访谈和现场考察等定性方法；
Compared to traditional heavy metal waste water treatment method, using low-cost adsorption material in the field of treatment of heavy metal becomes the subject of current research focus.
相比传统的重金属废水处理方法，利用廉价吸附材料处理重金属受到研究者亲睐，成为当前研究的主题。
It is difficult to implement the material equivalent using the method of experiment in the field of the target damage research.
采用实验方法确定目标毁伤研究中材料等效存在一定困难。
Based on the research of gas producing method selection and optimization of production parameters at home and abroad, forecasting model of gas well productivity is optimized using field documents.
采气方式优选和生产参数优化是气井合理生产的保证，而气井产能研究是确定采气方式和优选采气参数的基础。
Taking the impact jet flow field of individual rocket as research object, this paper calculates the jet flow field near the back of the launching tube by using the numerical simulation method.
该文以单兵火箭冲击射流流场为研究对象，采用数值模拟技术，对定向器管尾附近区域的燃气流场进行了数值计算，给出了发动机工作早期阶段冲击射流噪声场形成过程的计算结果。
Taking the impact jet flow field of individual rocket as research object, this paper calculates the jet flow field near the back of the launching tube by using the numerical simulation method.
该文以单兵火箭冲击射流流场为研究对象，采用数值模拟技术，对定向器管尾附近区域的燃气流场进行了数值计算，给出了发动机工作早期阶段冲击射流噪声场形成过程的计算结果。
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