In between, you'll have to join these patterns with [[: space:]] +, since you have no idea the columns are separated by Spaces or tabs, or a combination.
在上述模式之间，必须使用[[：space：]] +对它们进行连接，因为您并不知道这些列之间究竟是使用空格或制表符，还是两者的组合进行分隔。
There should be sufficient space between the resulting columns of bars to allow access for vibrators and good compaction of the concrete.
钢筋之间应该有足够的空间允许振捣器进入混凝土振捣和并使混泥土能良好的压实。
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