I think this is probably a size of lumber, but you can't get away from the mythology of that number.
我想这可能是木材的一种规格,但是你不得不去想,这数字中的神话意味。
They were the same size in the 1850s, but Brive gets the railroad and not Tulle, the railroad from Paris.
它们在十九世纪五十年代还是一样大的,但是布瑞福修了铁路,而不是图勒,通往巴黎的铁路
And if I want to move towers, let's say, size 5, from, to, and spare, there are the instructions for how to move it.
比如说五个吧,从这儿到那儿,中间再经过这个多余的柱子周转,关于怎么移动已经有说明了。
On the other hand, we've seen n that if the size of a is n, that's to say, we have n elements to choose from, then the number of possible subsets is 2 to the n.
另一方面,我们看到,如果a集合的大小是,也就是说我们有n个元素可供选择,而可能的子集的元素,个数就是2的n次方。
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