• 1. meta needs: 衍生需求
• 2. meta-needs: 超越性需要
• 3. Needs meta description: 需求的元描述

• 1.The pdqxml file needs to be packaged inside your archive file in the same location as the persistence.xml configuration file, usually the META-INF directory.
  在与 persistence.xml 配置文件相同的位置，需要将 pdqxml 文件打包在存档中，该位置一般为 META-INF 目录。
  dict.yoduao.com
• 2.The challenging part of all of this is that the API needs to parse a rather variable piece of content - a user created tweet - and find the appropriate meta data.
  这个API面临的挑战之一就是需要解析各种各样的内容，然后找到合适的元数据。
  dict.yoduao.com
• 3.If for some reason it isn't, then the meta-data needs to be fixed, but instead of performing an exhaustive meta-data scan (like FSCK) it instead takes a look at the journal.
  如果由于某些原因出了问题，那么就需要对元数据进行修复，但不是执行对元数据的彻底扫描(就像fsck那样)，而是查看日志。
  dict.yoduao.com

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