壶柄绘图对 Extrude Chain ? Extrude Thin wall l Extrude Extrusi on Operation Iraf C Create Body VDr CAda boss Extrusion Distance/Direction C Extend by specified distance Distanc 11.43 C Extend through al C Extend to point Vector Select r Trim to selected Face(s) 框参数 Reverse direction V Both directions N Split draft Cancel壶柄绘图( 对话框参数)