annularadj.环状的；有环纹的annular bit环形钻,环形钻头,环孔锥annular gun圆形电子枪annular pad环形盘annular saw圆锯,环形锯annular gap环形间隙,环形隙annular kiln环式窑Annular Tear纤维环撕裂annular tank循环水槽,环形柜annular cell环纹细胞annular core环形铁芯