名词中文翻译
中文翻译：焊接弧
同义词：
['welding line', 'welding arc', 'welding line', 'welding arc']
例句：
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1. The welding arc is used to join metal together.
焊接弧用于将金属连接在一起。
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2. The welding arc is a crucial part of the welding process.
焊接弧是焊接过程的关键部分。
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3. The welding arc was responsible for the successful completion of the project.
焊接弧负责成功完成该项目。