词汇	根尖穿孔
释义	根尖穿孔医apical fenestration
随便看	single-current signalling single current system single-current system single current telegraphy single-current telegraphy single current transmission single-current transmission singlecurrent transmission system single-current transmission system single current working single curvature single-curvature arch dam single curvature parts single-curvature surface single curve single curved glass single curved line single curved surface single-curved surface Single curved surface of revolution single curve fitting single curve gear single curve tooth single cusp single custom document