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ci sheng bo wu sheng de shi jie
Author(s): 
Pages: 150
Year: Issue:  6
Journal: Journal of Qiqihar Junior Teachers' College

Abstract: 大自然是美妙的,人类用各种触觉去感受我们这个绚丽多姿的世界.声音是多彩世界的重要组成部分,我们平常能听到自然界的声音,是由于人耳侦测到声波引起的介质(例如空气)压力变化,大脑将其解释为声音.……
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