“钎”的拼音为：qiān...

利用超声无损检测C扫描图像,可以反应钎焊缺陷及其分布特征,并自动计算出钎着率.The theoretical calculation of brazed rate based on C - scan image is described.这个特性对工件钎焊质量方面很重要.This feature is especially important for a quality brazing processes.真空钎焊是一种优良的连接技术....

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