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随着人民生活水平的不断提高,近年来对电冰箱的需求量越来越大,市场上连年出现电冰箱脱销现象,使电冰箱进入了人们日常生活中的新三大件。目前在我国已有不少生产电冰箱的专业工厂,它们的生产量每年都有较大的增长来满足市场的需要。由于电冰箱还属高档耐用的家用电器。因此我们对它的耐用性必须有足够的重视。如果我们生产电冰箱的返修率为2％,那么年产5万台电冰箱就有1000台要修理。事实上我们目前生产的电冰箱的返修率可
With the continuous improvement of people’s living standards, the demand for refrigerators has been growing in recent years. The phenomenon of out-of-stock refrigerators appears in the market year after year, making the refrigerators enter the new three major items in people’s daily life. At present, there are quite a few professional factories producing refrigerators in our country, and their production volume has a larger increase every year to meet the needs of the market. Because the refrigerator is also a high-end durable household appliances. Therefore, we must pay enough attention to its durability. If we produce the refrigerator repair rate of 2%, then an annual output of 50,000 refrigerator there will be 1000 to be repaired. In fact, we currently produce the refrigerator repair rate