名词
中文翻译：朱利安数
同义词：
['geometrical number', 'arithmetic progression', 'arithmetic sequence例句：1. The Julian numberof the prime number 2 is1.（质数2的朱利安数是1。）2. In mathematics', 'the Julian number of a series of numbersis the sum of their reciprocals.（在数学中，一个数列的朱利安数是这些数倒数之和。）3. The sequence of numbers1', '2', '4', '8', '16', '32', '... is an arithmetic sequence with a common difference of4.（这个数列1', '2', '4', '8', '16', '32', '...是一个等差数列，公差为4。）']
例句：
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1. The Julian numberof the prime number 2 is1.
质数2的朱利安数是1。
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2. In mathematics,the Julian number of a series of numbersis the sum of their reciprocals.
在数学中，一个数列的朱利安数是这些数倒数之和。
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3. The sequence of numbers1, 2, 4,8, 16,32, ... is an arithmetic sequence with a common difference of4.
这个数列1, 2, 4,8, 16, 32, ...是一个等差数列，公差为4。