We will be concerned primarily with bijective proofs, i.e., showing that two sets have the same number of elements by exhibiting a bijection (one-to-one correspondence) between them.
我们主要关心的是对射的证明，也就是透过在两个集合间建立一个对射（一对一且映成的函数）来证明它们的元素个数相等。
| 单词 | number of elements |
| 释义 |
number of elements
英语例句库
We will be concerned primarily with bijective proofs, i.e., showing that two sets have the same number of elements by exhibiting a bijection (one-to-one correspondence) between them. 我们主要关心的是对射的证明，也就是透过在两个集合间建立一个对射（一对一且映成的函数）来证明它们的元素个数相等。
原声例句
可汗学院：统计学（视频版） And you go to the number of elements in the sample. 然后您转到样本中的元素数量。 Introduction to Unity DOTS And then we specify the number of elements in this array. 然后我们指定该数组中的元素数量。 可汗学院：统计学（视频版） Where we have a big capital N, where N is the total number of elements in the population. 我们有一个大写字母 N，其中 N 是种群中元素的总数。 新托福Tpo听力 He adopted a number of elements from what he heard, like unusual rhythms. And he liked to use the glissando as his hallmark, which he probably got from listening to Croatian folk music. 他从他听到的声音中采纳了一些元素，比如不寻常的节奏。他喜欢用滑音作为他的标志，这可能是他听克罗地亚民间音乐后得到的。 可汗学院：统计学（视频版） And if you took some subset of that-- we're assuming that small n is less than or equal to big N. And anyway, you divide that by the total number of elements in the sample. 如果你取了其中的一些子集——我们假设小 n 小于或等于大 N。无论如何，你将它除以样本中元素的总数。 |
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