concentricadj.同中心的;同轴的
concentric stack同心烟囱
concentric layer同心层(动)
concentric-layn.同心扭绞线
concentric tubes同心管
concentric float同心浮标
concentric stria同心纹
concentric force轴心力
concentric coils同心线圈
concentric joint同心接合
concentric rings同心环