welded reinforcement of nozzle openings
... 侧面开孔的固定螺丝 Retaining screw with side openings 接管开孔的焊缝补强 Welded reinforcement of nozzle openings 开孔周围的连接 of attachment around openings ...
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welded reinforcement of nozzle openings
喷嘴开口的焊接加固
以上为机器翻译结果，长、整句建议使用 人工翻译 。