1)direction plane,方向平面2)Plane directionality,平面方向性3)directional cosine plane,方向余弦平面4)normal of the local plane,局部平面方向5)directional planar pattern,方向性平面靶标6)Plane pattern of an antenna,天线平面方向图
用法和例句
A novel whole-profile metrology system is designed with simple structure,only including one single vision sensor and one directional planar pattern.