对客车局部的焊缝间距进行了优化，得出了较理想的焊缝间距。
The space between the welding line was optimized by NX NASTRAN, through which an ideal space was obtained.
熔焊成型中多道焊缝路径间距是影响零件成型精度的原因。
The path space was one of the reasons that affected the precision of parts in the rapid prototyping based welding.
结果表明：焊接接头横截面宏观结构特征表现为焊核区的“洋葱环”和热-机械影响区的塑性流线变形，洋葱环的环间距随着距焊缝中心距离的增大而减小；
The experiment result shows that the spacing of onion rings, which is the most prominent features of most friction stir welds, decreases with the distance of onion ring to centerline increasing .
而在光丝间距和离焦量变化过程中，激光束对复合热源平板堆焊焊缝表面成形的影响很小。
The influence of Nd:YAG laser on hybrid weld appearance is light in variation of laser-arc distance and defocusing distance.
焊缝区和热影响区试样的辉纹间距较基体区的大，说明裂纹扩展速率快，焊缝和热影响区的抗裂纹扩展性较基体差。
The striation spacing in heat affect zone and welded seam samples was wider than that in matrix sample, this shows that fatigue crack propagation...
焊缝区和热影响区试样的辉纹间距较基体区的大，说明裂纹扩展速率快，焊缝和热影响区的抗裂纹扩展性较基体差。
The striation spacing in heat affect zone and welded seam samples was wider than that in matrix sample, this shows that fatigue crack propagation...
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