通过分析进口和国产发电机线圈挡块组件在化学成分、微观组织、力学性能等方面的差异,确定国产挡块组件质量是否满足使用要求。结......

针对热轧带钢下表面头尾145m内出现线状划伤缺陷问题,通过统计划伤卷的轧制单位、钢种、划伤位置,分析了划伤与轧线高度的对应关系......

Gamma-based titanium aluminides have great potential in the automotive industries (e.g. valves in a car engine),but trib......

Friction and wear of the sliding components in an automobile cause an increase in both fuel consumption and emission.Man......