...识不实故抱此偏见,又依此偏见而起第六识之种种偏见,亦如地体实有活动,不过因地面任何点其地位之定向几何(vector of position)l、t依工夫t而转变,其三次微分导数dl/dt甚小,故人不觉其动也。然地体活动,虽不易从地面知之,而观测天象,即可推知。
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Or, maybe I should insteadthink of it in terms of a position vector if it helps you.
也许我应该用位置矢量来考虑,如果你们觉得有帮助的话。
So, we want to decompose the position vector into a sum of simpler vectors.
故我们是把位置向量,分解为简单向量的和。
And, the way we can get it, so, it's called usually V, so, V here stands for velocity more than for vector. And, you just get it by taking the derivative of a position vector with respect to time.
根据它的原理,我们通常用v表示,这里的V更代表速率而不是矢量,你能通过,对一个关于时间的位置向量求导得到它。
That's the analog of the position vector.
那是和位矢相似的情况
I think it's clear, the position of the object with respect to the ground, this vector is the same as the position of the object with respect to the plane, plus the position of the plane with respect to the ground.
我觉得很明显,物体相对于地面的位置,这个矢量等于,物体相对于平面的位置矢量,加上物体相对于地面的位置矢量
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