The results show that this microsensor is not only used to measure the magnitude of magnetic intensity, but also applied possibly to monitor the direction of vector of the magnetic field.

结果表明：微传感器件不仅可以测量出磁场的大小，而且给出了测量磁场矢量方向的可能性。

youdao

And, the direction is essentially that of a vector.

方向基本和这里的单位切向量一致。

youdao

Only the direction of the vector, the ratios between the component amplitudes, is important.

只有向量方向，即分振幅之间的比值，是重要的。

youdao

It's good to have a vector pointing in the radial direction of length one.

所以引入这么一个模长为 1,方向沿圆心向外辐射的矢量作用很大

耶鲁公开课 - 基础物理课程节选

At each point, er is a different vector pointing in the radial direction of length one.

矢量 er 在每一点处都不同,方向都从圆心指向该点,模长为1

耶鲁公开课 - 基础物理课程节选

You've got to be very used to the notion of taking a vector in some oblique direction and writing it in terms of i and j.

你们应该已经很熟悉,倾斜的坐标系中矢量的概念,和用 i 和 j 来表示该矢量的方法

耶鲁公开课 - 基础物理课程节选

In other words, the x, y location of the touch, the force or depth of the touch, and the vector direction of the touch (2 angles).

FORBES: Apple's Ridiculous Patent