然后交错每个连续四进位输出符号的位，从而产生具有全局且交错的连串长度约束的输出比特流。

The bits of each successive 4-ary output symbol are then interleaved, producing an output bit-stream which has global and interleaved run-length constraints.

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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.

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