Parity bit: a check bit added to a series of binary digits to make the total odd or even according to the logic of the system.
奇偶校验：加于一组二进制数字内的一个校验数元。它跟据系统逻辑，使总数为奇数或偶数。
If two integers are both odd or both even, they are said to have the same parity; if one is odd and one even, they have different parity.
假如两个整数都是奇数或都是偶数，则它们具有相同的奇偶性；
Parity is an error-checking procedure in which the number of 1s must always be the same—either even or odd—for each group of bits that is transmitted without error.
奇偶校验是一个错误检查过程，其中每组无错传输位的1的数目必须始终相同，即或奇或偶。
Usually set up a dedicated parity bit, it makes this group code "1" is odd or even.
通常专门设置一个奇偶校验位，用它使这组代码中“1”的个数为奇数或偶数。
Usually set up a dedicated parity bit, it makes this group code "1" is odd or even.
通常专门设置一个奇偶校验位，用它使这组代码中“1”的个数为奇数或偶数。
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