digit check

International Telex Directory Information check digit [ International Standard Book Number]

国际电传号码簿信息稽核数码〔国际标准书号〕

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A garment of unusual size. check digit [ International Standard Book Number]

号码超过标准的服装稽核数码〔国际标准书号〕

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A binary check digit; for example, a parity bit.

一个二进制校验位, 例如奇偶位.

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Check digit: An extra digit calculated automatically from other digits in a data item and used to check its accuracy.

校验数位：在一数据项目中的额外数位，它自动加上于其他数位中运算，以核对该数据的准确性。

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This check digit calculation works similar to bar coding.

这些校验数位计算工作与条形码相似.

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Attached is the sales contract with the UPC numbers. Please be sure and add the check digit for 4404.

附件为带UPC条形码的合同，请确定为4404（款）加上校验码。

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If you're expecting a number, make sure your data is in number format& typically, that means only digits, and at least one digit ( you can check this using the regular expression^ [ 0-9]+$).

如果您期望输入的是一个数字，就确认数据是数字格式――比如，只是针对阿拉伯数字，并且是至少一位阿拉伯数字（您可以使用与正则表达式^[0-9]+$检查它）。

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