An eight-node solid element with two parallel faces and one traction-free cylindrical surface is derived using the assumed stress hybrid method.

应用假设应力杂交元的方法，导出了一个八节点的实体元。此元具有二个平行的表面及一个无外力自由的园柱表面。

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As these crystals flutter to the ground, much time is spent with their faces flat, parallel to the ground.

这些冰晶缓缓地飘向地面，大多数时候是面向地面并与地面平行的。

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The products made by this machine have automatic banding effect, and roller fabric slitting sides are parallel. Besides, its end faces are very smooth.

用分条机做出得产品具有自动封边的效果，分条的卷料两边绝对平行，端面平整。

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About an hour later, I was part of the mass movement of students going in opposite directions, in wind-whipped snow, two roughly parallel columns moving from old campus to new and vice versa, faces in ski masks, bodies shouldering into the wind or pushed along by it.

NEWYORKER: Midnight in Dostoevsky