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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Cleavage occurs on planes where the atomic bonding forces are weakest; for example, galena cleaves parallel to all faces of a cube.

解理产生于结合力最弱的平面上，如方铅矿可以平行于立方体的所有晶面劈开。

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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