单位矢量,始终指向,轴的正方向,轴方向的单位矢量，and，the，unit，vector,是这个。
Unit vectors are always pointing in the direction of the positive axis x in the x direction is this one.
事实上这意味着物体在局部坐标空间绘制，并且物体的正面朝向z轴正方向。//译者注：z轴正方向垂直屏幕指向观察者。
In practice this means that the object is drawn in the local origin, and it is looking along the positive Z axis.
提出了一种基于支持向量回归机(SVR)的三轴磁通门传感器误差修正方法。
An error correction method for three axial fluxgate sensor based on support vector regression (SVR) is proposed.
BP神经网络的系统误差修正方法的修正精度比球谐函数法提高约20%，有望用到球谐函数法不适用的三轴光电跟踪系统的系统误差修正中。
BP neural network system errors modifying method improves the precision than globe function method about 20% and may be used in three-axis photoelectric tracking system.
BP神经网络的系统误差修正方法的修正精度比球谐函数法提高约20%，有望用到球谐函数法不适用的三轴光电跟踪系统的系统误差修正中。
BP neural network system errors modifying method improves the precision than globe function method about 20% and may be used in three-axis photoelectric tracking system.
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