concentricadj.同中心的;同轴的
concentric charge集中装药
concentric circle同心圆
concentric lamina同心层
concentric symtom密集病症
concentric sleeve同心套筒
concentric conics同心二次曲线
concentric circles同心圆
concentric annulus同心环空
concentric mosaics同心拼图
concentric folding平行褶皱