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据历史学家估计,5000多年前,人类就开始实验和改进焊接技术了。在古代,精通焊接或其他金属加工方法可以与在商界、甚至于政界所取得成就相媲美。
Historians estimate that more than 5,000 years ago humans began experimenting and improving their welding techniques. In ancient times, proficiency in welding or other metalworking methods was comparable to the achievements made in business and even in politics.