On the other hand, many services are built with a somewhat generic interface: one string goes in and one string comes out, or plain binary objects are exchanged.
另一方面，很多服务均使用通用接口构建：一个字符串传入，另一个字符串传出，或者交换纯二进制对象。
If you're really concerned about space efficiency, compressed plain text will often outperform binary data formats and be much easier to read.
如果您真正关心空间的效率，那么压缩纯文本通常要比二进制数据格式要好，并且更容易读取。
An indexing engine, which is responsible to statistically analyze the plain text (derived from the binary document) and compute a list of tokens, sorted by frequency.
索引引擎，它负责在统计层面上分析纯文本(由二进制文档派生而来)，然后计算令牌的列表，按使用频率排序。
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