even permutation 偶排列 ; 奇排列
gerade permutation even permutation 偶置换
even permutation polytope 偶置换多面体
The entire universe of things that could be tested is typically too large to be covered within a given schedule, even more when multiple features are combined and the permutation grows exponentially.
可以进行测试的整个范围通常太大，难以在给定的时间内完成测试工作，当多个特性组合在一起时测试的范围将变得更大，其排列组合呈指数上升。
By a proper permutation of such pulses, the final reflectance of even difference could be obtained for gray scale display applications.
通过这种脉冲的适当排列，可得到用于灰度显示的最终等差反射。
The permutation is even if the number of inversions it contains is even.
如果一个排列中含有的反序的个数是偶数，则称它为偶排列。
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