... prevulcanization 早期硫化，焦烧 preweld 预焊 preweld interval 焊前间隙 ...
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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
·2,447,543篇论文数据，部分数据来源于NoteExpress
Applied GTAW and SMAW to weld Ammonia Saturator with emphasis on preweld treatment and controlling welding heat input, high welding quality and efficiency were reached.
在氨饱和器焊接中采用钨极氩弧焊与焊条电弧焊相结合的焊接方法，重视焊前清理和焊接线能量控制，既保证焊接质量又提高生产效率。
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