In this study, different appropriate pre-volatile time of two kinds of VCI film is investigated by weight-loss method and the effect of different pre-volatile time on antirust effectiveness o.
为考察预膜时间对防锈效果的影响，采用失重法研究了两种气相防锈膜的不同预膜时间，并借助盐雾箱腐蚀试验考察了不同预膜时间对其防锈效果的影响。
The interchanging tunnel mining method is suggested on bases of careful feasibility study in both technologically and economically. A new method is developed for recovering the large amount of o…
并提出了进路间隔回采方案，从技术和经济两方面作了详尽的可行性分析，为我国大量残留矿资源的回收探索了一条新路。
应用推荐