一九八七年,中国青岛电冰箱总厂生产的琴岛-利勃海尔电冰箱,参加了世界卫生组织的招标,各种指标均优于日本、美国等国同类产品,结果一举中标.这一消息使许多人感到惊讶:中国从生产“二星级”电冰箱上升到“三星级”电冰箱,曾用了二十多年的时间;而该厂这次引进联邦德国的新技术,仅用三年时间,就生产出“四星级”电冰箱,从而跻身于世界一流水平的行列. In 1987, the Qindao-Liebherr refrigerator manufactured by the Qingdao Refrigerator Factory in China participated in the bidding of the World Health Organization. All kinds of indicators were superior to those of similar products in Japan and the United States, and the result was successful. Many people were surprised by news that China had spent more than 20 years from producing a “two-star” refrigerator to a “three-star” refrigerator. The plant was introduced to the Federal Republic of Germany The new technology, in just three years, to produce “four star ” refrigerator, which ranks among the best in the world.