1) difficult-to-form metal
难变形金属
1.
Groove design and parameter calculation on 3-roll y-type continuous rolling mill have a great influence on the natural act and working efficiency of difficult-to-form metal wire-rod product line.
三辊Y型连轧机的孔型设计与参数计算,直接影响着难变形金属棒线材生产线的正常工作及工作效率,尤其是孔型参数的计算。
4) lessdeformable steel and alloy
难变形钢和合金
5) Cold-shaping of Metal
金属冷变形
6) refractory metals
难熔金属
1.
Molecular dynamics study of the melting point for refractory metals (Vanadium,Niobium, and Tantalum);
分子动力学研究难熔金属(V、Nb和Ta)熔点
2.
This paper reviews the conventional fused salt electrolysis process for production of refractory metals and analyzes its shortages: conventional electrolysis has strict demands for electrolyte, which leads failure in production of refractory metals with conventional electrolysis.
介绍了传统的熔盐电解法用于难熔金属制备的应用现状,分析了其存在的弊病:主要是传统熔盐电解法对电解质要求严格,难以找到合适的熔盐。
3.
The present status of research and application of ultra-high temperature materials such as refractory metals,ceramic matrix composites and carbon/carbon composites were summarized.
综述了难熔金属、陶瓷基复合材料及炭-炭复合材料等超高温材料的研究和应用现状,分析了目前存在的问题,提出了今后的研究方向。
补充资料：难夫难妻(难ｎàｎ)
一名《洞房花烛》。故事片。亚细亚影戏公司1913年摄制。郑正秋编剧，张石川、郑正秋导演。一对素不相识的青年男女，经媒婆撮合拜堂成亲，在封建礼教桎梏下开始艰难的夫妻生活。为中国第一部故事片。
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参考词条