Through studying the relationship between space vectors of different coordinate systems, a new model of three-dimensional datum transformation is proposed.
从空间几何角度出发，利用空间向量的关系研究坐标转换，提出一种新的三维基准转换模型。
Using three-dimensional space vectors, this paper describes a simple method for detecting the distorted current without any coordinate transformation.
利用三维空间矢量，提出了一种新型的无需坐标变换的三相电路畸变电流检测方法。
应用推荐