When you integrate this, - the motion that we try to do — we keep this fixed and then we just rotate around the origin.
算出这个积分，我们要做的是-，把原点固定，然后绕着原点旋转。
So trades, nicknames, places of origin, and fathers' names became fixed surnames - names such as Fletcher and Smith, Redhead and Swift, Green and Pickering, Wilkins and Johnson.
因此，职业、昵称、家乡和父亲的名字就用来当作姓氏——例如，富勒特彻和史密夫，利德·希特和斯福特，格林和皮克灵，威肯斯和约翰逊。
A value of 0 will cause the origin to stay fixed, as though it is pinned in place.
值为0会使起源保持固定，像被钉在一个位置上。
At that time, not only the boundary of then music origin was fixed but also the three concepts "voice, sound and music" were distinguished, via the analysis of music essence.
彼时不仅对音乐的起源作出了多种界说，还在对音乐本质的分析中，将“声”、“音”、“乐”这三个概念加以区分。
At that time, not only the boundary of then music origin was fixed but also the three concepts "voice, sound and music" were distinguished, via the analysis of music essence.
彼时不仅对音乐的起源作出了多种界说，还在对音乐本质的分析中，将“声”、“音”、“乐”这三个概念加以区分。
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