active porosity

基本解释

And study the influence of welding speed and active gas for welding porosity defect.
着重研究了焊接速度与活性气体对气孔形成的影响关系。
The influence of porosity and active catalyst surface area on the performance of cathode is analyzed as well.
同时分析了孔隙率和催化剂表面积对催化剂层性能的影响。
In this paper we briefly analyze the mechanism of engendering pores in powder metal material(PM), and study the influence of welding speed and active gas for welding porosity defect.
简要分析了粉末冶金材料激光焊接中气孔的产生机理，着重研究了焊接速度与活性气体对气孔形成的影响关系。