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根据国际隧道协会(International Tunnel-ling Association)主席格尔脑教授的建议,经我国政府同意,确定在1984年10月下旬在北京召开国际隧
According to the proposal of Prof. Geernao, Chairman of the International Tunnel-ling Association, with the consent of the Chinese government, it was decided to hold an international tunnel in Beijing in late October 1984.