名词
中文翻译：焊缝线
同义词：
['welding line', 'weldingseam']
例句：
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1. Thewelding line was carefully marked onthe steel plate.
在钢板上仔细标出了焊接线。
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2. The welding lineis essential for ensuring the structural integrity ofthe joint.
焊接线对于确保接头的结构完整性至关重要。
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3. During the welding process, it's important to maintain aconsistent welding line.
在焊接过程中，保持一致的焊接线很重要。