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无穷的潜力
details | 无穷的潜力
PG-1319861 h 27 m
Director
: 许珂Description
: 某轧钢厂老工人孟长有,经过三年的刻苦钻研,发明了反围盘,改善生产条件,大大提高了生产率,说明了工人阶级无穷的潜在力量。More
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