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今年,2007年,是刘敦桢先生诞辰110周年。与一百一十年前的十九世纪相比,如今的二十一世纪是一个加速
This year, 2007 is the 110th anniversary of Mr. Liu Dunzhen’s birthday. Compared with the nineteenth century one hundred and ten years ago, the present twenty-first century is an acceleration