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单词 subject header
释义

Definition of subject header in English:

subject header

noun
  • 1US a library worker responsible for assigning subject categories to books for the purposes of classification (now rare).

  • 2Computing a header or part of a header which identifies the subject or topic of the following data, document, etc.; especially the subject line of an email.

Origin

Early 20th century; earliest use found in Library Journal.

Definition of subject header in US English:

subject header

noun
  • 1US a library worker responsible for assigning subject categories to books for the purposes of classification (now rare).

  • 2Computing a header or part of a header which identifies the subject or topic of the following data, document, etc.; especially the subject line of an email.

Origin

Early 20th century; earliest use found in Library Journal.

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更新时间:2025/6/19 23:30:36