中英释义：
双语例句
这些连接的可能排列数比宇宙中的粒子数还要多.
The possible permutations of those connections are more than there are particles in the universe.
通过对有限制条件的可重复排列数的讨论,得到求无重复排列数的序数的另一种计算方法.
The calculating method application about ordinal of being duplicated permutable number with constrained condition are approached.
重点词汇
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排列
rank; range; arrange; order; place; dispose; array; align; put in order; lay out; arrangement; ordering; disposition; permutation; patterning; arrayed