1) elongated focusing electrode
加长聚焦电极
2) Focusing electrode
聚焦电极
3) Cylindrical electrode focusing
圆筒电极聚焦
4) SFL tool
球形聚焦电极系
5) Dynamic focusing electrode
动态聚焦电极
6) focus electrode potentia
聚焦电极电位;聚焦电极电位
补充资料:冲击波聚焦效应