natural number

常见例句

用作名词 (n.)

• Today we are going to classify natural numbers by seeing how many divisors they have.
  我们学习根据一个数约数的个数来对自然数进行分类。
• The cover pebbling number for lexicographic product graphs and some strong product graphs were determined.
  对一个图而言，满足此条件的最小的自然数即为此图的覆盖数。
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