名词短语
中文翻译：点焊机和顶锻焊接机
同义词：
['spotwelder', 'butt welder']
例句：
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1. The spotand butt welding machine isused for the assembly of metal parts.
点焊机和顶锻焊接机用于金属部件的组装。
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2. The spot and buttwelding machine has been upgradedto improve efficiency.
点焊机和顶锻焊接机已经升级，以提高效率。
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3. The spot and butt welding machine isa crucial tool in the manufacturing process.
点焊机和顶锻焊接机是生产过程中的关键工具。