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8月12日,在澳大利亚堪培拉,一名科学工作者在科技周活动上向儿童讲解光线吸收和反射的原理。澳大利亚全国科技周12日开幕,活动将持续至20日。其间,澳大利亚各地将举行2000多场活动,预计将有130万人参与。澳大利亚全国科技周旨在宣传科普知识,提高人们特别是儿童对科学、工程、数学、创新等方面的兴趣。今年是澳全国科技周活动创立20周年。新华社发(钱军 摄)
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