在这些图片中面法线显示为青色.In these images the face normals are drawn cyan.翻转法线 - 改变选择面的法线方向.Flip Normals - Change the Normal directions of the selected faces.三角星形线的两条互相垂直的法线的交点在哪里?Construct two mutually orthogonal tangents of the d...
Self-consciously she fingered the emeralds at her throat.她局促不安地摸抚着脖子上的绿宝石。He showered her with emeralds and furs.他送给她很多绿宝石和裘皮大衣。The crown was set with precious jewels—diamonds, rubies and emeralds.王冠上镶嵌着稀世珍宝—有钻石、红宝石、绿宝石。...