如果您需要方便快捷的方式来检索与任意密钥相关的数据，那么您应该使用此种类型的对象。
You should use this kind of object when you need a convenient and efficient way to retrieve data associated with an arbitrary key.
主要介绍在网上检索纺织信息的几种方法和处理技术，为人们检索纺织信息提供了方便快捷的途径。
This article mainly introduces the methods and technique to index the textile Information on Internet, and provides consumers with convenient and prompt courses to proceed.
而且还可以把自己喜爱的菜肴收藏起来，或根据关键字进行检索，方便快捷。
But also the collection of their favorite dishes together, or by keyword search, convenient and quick.
应用推荐