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从技术角度划分,世界上有技术先进的发达国家、技术落后的不发达国家和处于两者之间的技术较进步的国家,这反映在各国的经济发展水平上,也同样可相对划分出经济发展水平的梯度差距。以美国为首的发达国家在较高等级,它们之间梯度差距较小;较低等级主要是亚洲、拉美的一些国家,它们之间差距较小,但与发达国家差距较大;其他贫穷国家在最低等级。中国在较低等级,然而上海在较低等级之上。这使上海处于对技术贸易发展
From the technical point of view, there are technologically advanced developed countries in the world, underdeveloped countries with backward technologies, and countries with more technological advancement between the two countries. This is reflected in the level of economic development of each country, and it can also be divided into relatively economic sectors. The gradient of development levels. The developed countries headed by the United States are at a higher level, and the gradient gap between them is smaller; the lower levels are mainly Asian and Latin American countries. The gap between them is small, but there is a big gap with the developed countries; other poor countries are Lowest level. China is at a lower level, but Shanghai is above a lower level. This places Shanghai in the development of technology trade