如果迭代的次数已知并且固定——这种情况非常少见——这个数字出现在星号后面的方括号中。
If the number of iterations is known and fixed — a rare occurrence — that number appears in square brackets following the asterisk.
廖学锋称中国每年会新增20座机场，即便这个数字出现增加，短期也不用担心这个全世界人口最多的国家会出现机场过剩的问题。
Liao said China is adding 20 airports a year and, even if that number rose, there are no short-term concerns of an airport glut for the world's most populous country.
古典数学家相信这个数字代表了最美观的矩形的尺寸，不过它一般出现在计算数学中。
Classical mathematicians believed that this number represented the most aesthetically pleasing ratio for the dimensions of a rectangle, but it also turns up in computational mathematics.
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