笔者面前摆着两份反映上海电子管四厂不同时期经营效果的统计材料。一份材料说: 1976年,每人平均上交利润仅10.70元。全年生产的黑白显象管中,降级品和废品的数量竟然超出正品数的25%。1977年、1978年两年中,31cm(12英寸)黑白显象管的单位成本高达250元。1980年在全国五家显象管厂产品质量评比中名 In front of the author, there are two statistical materials that reflect the operating effects of the Shanghai Electronic Tube Factory in different periods. A material said: In 1976, the average profit per person was only 10.70 yuan. In the black and white picture tubes produced throughout the year, the number of degraded products and waste products surpassed 25% of the number of genuine products. In 1977 and 1978, the unit cost of a 31cm (12 inch) black and white picture tube was as high as 250 yuan. In 1980, the product quality appraisal of five video tubes in China