cad 绘图中常用英语对照 投影 projection 投影中心center of projection 投影面projecting plane 投影线projecting line 中心投影法perspective projection 平行投影法parallel projection 斜投影oblique projection 正投影orthographic projection 正投影面frontal plane of projection 侧面投影面profile plane of projection 投影图projection drawing 三面投影图three-plane projection drawing 投影轴 axis of projection 投影特性 characteristic of projection 不变性 characteristic of true 积聚性 characteristic of concentration 类似性 characteristic of similarity 视图view 三视图three-view drawing 正面frontal plane 正面投影frontal projection 水平面horizontal plane 水平投影horizontal projection 侧面profile plane 侧面投影profile projection 主视图frontal view 俯视图top view 左视图left side view 立体 solid 平面立体 plane body 曲面立体 body of curved surface 回转面surface of revolution 棱柱 prism 棱锥 pyramid 边 side 顶点center vertex 棱edge 点poi