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科技新干线有4个极:第一极是中关村科技园;第二极是朝阳的CBD;第三极是天津泰达;第四极是北京亦庄经济技术开发区。
Science and Technology Shinkansen has four poles: the first pole is the Zhongguancun Science Park; the second is the Chaoyang CBD; the third is Tianjin TEDA; the fourth pole is Beijing Yizhuang Economic and Technological Development Zone.