Each time slot of the uplink frame contains a byte overhead , whose guard time is used to keep slight phase shifts from impairing the signal . the prepositive bit pattern is used for synchronization capture 在上行帧的每个时隙里有字节开销，其防卫时间用于防止微小的相位漂移损害信号，前置比特图案则用于同步获取。
For character and unicode data , a definition of the bit patterns that represent specific letters , numbers , or symbols such as 0x20 representing a blank space and 0x74 representing the character " t " Uniqueidentifier数据类型( uniqueidentifier data type )包含唯一标识号的一种数据类型，其标识号被存储为用来存储全局唯一标识符( guid )的16字节二进制字符串。
The locale defines the code page , or bit patterns , used to store character data , and the order in which characters are sorted . it also defines language - specific items such as the format used for dates and time and the character used to separate decimals in numbers 包含一个或多个还原命令的序列，通常用于初始化要还原的数据库、文件和/或页的内容（数据复制阶段） ，前滚记录的事务（重做阶段） ，以及回滚未提交的事务（重做阶段） 。
