One way we can compress data is to use a frequency table or a frequency distribution. 压缩资料的一种有效方法是编制频率表或频率分布。
The compression storage of the frequency table and the affixation information is of great significance for the whole realization of constant grade compression technology. 频率表及附加信息的压缩存储对整个常数级压缩技术的实现具有重要意义。