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20世纪70年代初,不到20岁的余昌琴由公社推荐,成为浙江先锋机械有限公司第一批学徒工,开始了他的钳工生涯。
In the early 1970s, Yu Changqin, less than 20 years of age, was recommended by the commune to become the first apprentice in Zhejiang Pioneer Machinery Co., Ltd. and began his fitter career.