这个校验和的基本规则是前九位数的每一位乘上它的位置(即第一位数乘上1，第二位数乘上2，依次类推)。
The basic rule for this checksum is that each of the first nine digits is multiplied by its position (that is, the first digit times one, the second digit times two, and so on).
不过，他应付有方，已经研究出一套数学模型来解释第二位数的分布，将统计上的疑异置于更充裕的分析基础上。
However, he has managed to develop a mathematical model that explains the distribution of the second digits, putting what might appear to be a statistical oddity on a more solid footing.
该字段指定itu - T 14位国际信令传输点编码对中的第二位数且如果已经指定了24位信令传输点编码对就不能使用该字段。
This field specifies second value in the ITU-T 14-bit international signal transfer point code pair and should not be used if the 24-bit signal transfer point code pair has already been specified.
该字段指定itu - T 14位国际信令传输点编码对中的第二位数且如果已经指定了24位信令传输点编码对就不能使用该字段。
This field specifies second value in the ITU-T 14-bit international signal transfer point code pair and should not be used if the 24-bit signal transfer point code pair has already been specified.
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