round top or bottom: round meetings of evaluation top or bottom;
if there is an issue, like ism news 08012011, let mkt round bottom on it before buying at dip
Civil3D曲面本质是点、三角网、DEM网格。在此基础上显示等高线,进行各种高程分析、坡度分析、汇水分析等仅仅是表现形式。因此不是独立的对象,是附属于曲面对象的
many curves or circuits running around for directions, once direction is found, herds follows