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preweld

adv. [机] 预焊，焊接前

1、[机]预焊

... prevulcanization 早期硫化，焦烧 preweld 预焊 preweld interval 焊前间隙 ...

preweld interval[机] 焊前间隙

preweld matting焊前清洗

preweld treatment焊前处理

preweld preheat treatment焊前预热处理

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