单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级Beam Instability in CEPC2014-9-12WANG Na ZHENG Hongjuan WANG Yiwei WANG DouCEPC workshop at SJTU2OutlineImpedance budgetSingle-bunch effectsMulti-bunch effectsElect