plastic parts do not match in texture or gloss or color 塑料部件的文理／光泽／颜色不一致 welding lines 焊接痕 spot weld marks not properly cleaned or polished 焊点不整洁／表面处理不良 ..
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The rusty sites are mostly at the corners, edges and their welding lines.
锈蚀部位主要在棱角、拐角、边缘和角接焊缝处。
The place where transducers are equiped should be away from flanges, welding lines etc.
传感器安装位置应避开法兰、焊缝、变径。
The fatigue and ultimate strength analysis of hull structure with two different butt-welding lines distribution was researched in this paper.
对两种不同对接焊缝布置下的船体结构进行疲劳强度和极限承载能力分析。
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