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aEarthing systemand lightning protection 接地系统和避雷 [translate] a親愛的邱勝翊Dear Qiu win pers. name elem [translate a我想这些奇怪特点也是他成为伟大科学家的原因吧 I thought these strange characteristics also are he become the great scientist's reason [translate] a专业技能知识牢固 ...