fixed length field

• 固定长度字段

fixed length field的用法和样例：

例句

1. The length field for this subdisk record cannot be read.
   无法读取这个子磁盘记录的长度字段。
2. The FileLength field is the total length of the SWF file including the header.
   文件长度字段代表包括文件头整个文件的总长度。