A series of Ni–Cr–Fe welding wires with different Nb and Mo contents were designed to investigate the effect of Nb and Mo on the microstructure, mechanical pr
摘要:本人从土木工程施工过程中的常见问题出发,对施工现场安全、项目管理中的合同管理和施工造成环境公害方面问题进行了的论述,并给出了相应的处理施工问题的对策和方法。 关键词:土木建筑施工问题与对策 Summary: I am starting from the common problems in civil engineering construction process, the contra