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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。
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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。
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