It was shown from experimental results that the performance of copper liner shaped charge jets are strongly dependent on the grain size of a initial liner.
研究结果表明，药型罩材料的晶粒度对射流动态延伸特性有重要影响。
The applies in the ocean oil gas pipeline construction bevel machine article, the belt copper liner welds and pipeline auto welding machine, welding equipment and welding procedure were introduced.
介绍了应用于海洋油气管道施工的坡口机、带铜衬垫对口器、全位置自动焊等焊接装备和焊接工艺。
In view of the work conditions of Jinchuan copper-nickle Sulfide, the analysis of feeder liner was made.
根据金川镍铜矿箕斗提升系统的工况条件，对箕斗衬板进行了磨损失效分析。
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