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jin fang you er wu tun niu kou dian chi
Author(s): 
Pages: 14-15
Year: Issue:  10
Journal: Health World

Abstract: 随着电子技术的发展,微型电池越来越广泛地应用于电子照相机、电子手表、电子计算器和各种电子玩具中。这些小如钮扣的电池做得小巧玲拢,精致美观,很受
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