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化学驱油是世界石油界关注的重大科技难题，水驱采油仅能采出原始地质储量30%左右。面对三次采油“卡脖子”难题，伍晓林带领团队攻关，历经5600多次试验终于实现突破9393体育平台app台登录，使大庆油田采收率在二次采油技术基础上提高14至20个百分点。2022年，大庆油田又攻克三次采油2.0版表面活性剂核心技术，进一步提高了采收率。

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The International Conference on Studies of the Community for the Chinese Nation, the parallel session of the Second World Conference of Sinologists, was held on Wednesday at the Palace of China Ethnic Cultures in Beijing.

Carsten B. Th?gersen, Danish sinologist and former Consul-General of Denmark in Shanghai, said in an exclusive interview with China News Network that it's important that foreigners visit China to see for themselves, to meet Chinese people and to speak with them so that they can understand China much better. (Wang Fengping)