这条线在地理上是条平行线,它是个东西向的圈。
OK,so this guy,so that's a piece of what's called a parallel in geography That's a circle that goes east-west.
如果你要画一个网格(例如缩略图)先画出所有的平行线作为一连串的长线来保持线的长度和角度都一致。
If you're drawing a grid (of thumbnails, for instance), draw all parallel lines first as a series of long dashes to help keep line lengths and angles consistent.
按照定义，平行线是在同一平面上永不相交的线。
Parallel lines are, by definition, lines on the same plane that never join.
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