释义 |
- 1
Pointing refers to the requirement to point the satellite (or an instrument on the satellite) toward some ground object. 指向的意思是要求卫星(或卫星上的设备)朝向一些地面目标。 - 2
That one would be pointing kind of to the back slightly up maybe, so like that. And now your middle finger is going to point in the direction of the normal vector. 曲面的方向有点向后向上,应该差不多像这样,那么现在你的中指,指的方向就是法向量的方向了。 - 3
Well, , see, that is a vector field that is equal to the vector from the origin to the point where I am, so it is pointing radially away from the origin. 也就是,这个向量场等价于,从原点指向给定位置的向量,所以它是以原点为心向外辐射的。
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