The paper gives an analysis of the hydraulics properties, the method of connection and the feasibility of transporting artificial coal gas and the prospects of expansion application of PE gas line.
对聚乙烯燃气管道水力学特性、连接方式以及输送人工煤气的可行性进行了分析，阐明了推广应用聚乙烯燃气管的前景。
In this paper, a correctional method of pressure zero line is proposed and some practical examples of the analysis and application of indicator diagrams are introduced.
本文还提出了一种压力零线的修正方法，给出了示功图分析应用的几个实例。
This article is written in accordance with the main line of theory-Methods-Application, provided qualitative and quantitative analysis to the express service customer satisfaction research.
本文按照理论—方法—应用的主线组织全文，围绕快递服务顾客满意度，进行了定性与定量分析。
应用推荐