This paper introduces some properties of the gangue, and analyzes the possibility that gangue is used in highway construction, and gives its some advantages of utilization in construction.
介绍了煤砰石的一些性能，分析了它的路用可能性，并指出了它路用的一些优点。
This paper expounds the defects of the comparative advantage theory and analyzes the possibility and the feasibility that China sets up its competitive advantage.
阐述了比较优势理论的缺陷，分析了中国建立竞争优势的可能性和可行性。
This paper analyzes the welding performances of the pipeline steel X80 including softening of heat affected zone, its matching with base material and the possibility of welding cracking. It also de…
文章分析了高强度X80钢管道的热影响区的软化、焊缝金属与母材的匹配及产生焊接裂纹的可能性，介绍了管道环缝焊接工艺，还列举了国外X80钢管道的焊接工程实例。
This paper analyzes the welding performances of the pipeline steel X80 including softening of heat affected zone, its matching with base material and the possibility of welding cracking. It also de…
文章分析了高强度X80钢管道的热影响区的软化、焊缝金属与母材的匹配及产生焊接裂纹的可能性，介绍了管道环缝焊接工艺，还列举了国外X80钢管道的焊接工程实例。
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