一个通信包中的数据位数。

The number of data bits in a communication packet

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这是测量可能存储在磁盘一面的数据位数的指标。

This is a measure of the number of bits of data that can be stored on a given surface area of the disk.

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它是用来设置波特率，奇偶校验，数据位数，停止位。

It is used to set baud rate, parity check, number of data bits, stop bit.

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