这是一幅立轴画，中间是画心，四周用绫锦镶边。

It's a vertical-hanging painting with a first draft in the middle and silk purfle surrounded.

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将一幅风景画的水平面放在三分之一处要比放在正中间效果更好，但是，它也可以放在接近底部的四分之一或六分之一处。

Moving a horizon in a landscape to the position of one third is often more effective than placing it in the middle, but it could also be placed near the bottom one quarter or sixth.

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然后计算机基于样条曲线计算出连接关键帧数值的中间画的数值。

The computer calculates the inbetweens values based on a spline curve connecting the keyframe values.

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So, we can put our sulfur in the middle, and then it doesn't really matter how we draw the rest of it, where we put our c l's versus where we put our oxygen.

那么，我们可以把硫放在中间，然后把其它的原子画在哪里就不重要了，把两个氯原子与一个氧原子放在哪里都行。

麻省理工公开课 - 化学原理课程节选

All right. So, let's go ahead and draw our Lewis structure here with sulfur in the middle.

好，那么，让我们来把我们的,路易斯结构画在这，硫在中间。

麻省理工公开课 - 化学原理课程节选