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1972年,清华大学潘际銮教授和他的同事曾发明了世界上第一台逆变焊机,但这一发明在“文革”期间被湮没了。而这种焊机十年后才在国外问世,并被称为最新一代焊机。
In 1972, Professor Pan Jiluan and his colleagues at Qinghua University invented the world’s first inverter welder, but the invention was obliterated during the “Cultural Revolution.” This kind of welder came out in foreign countries ten years later, and is called the latest generation of welder.