When all the header information for calendar entries cannot be displayed completely for a day in a calendar view, the day displays a horizontal scroll bar.

在日程表视图中，当一天中的所有日程表条目的标题信息无法完全显示时，这一天显示一个横向滚动条。

youdao

Ability to specify header information.

指定标头信息的能力。

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The next few lines of code set specific header information.

接下来几行代码的作用是设置具体的头信息。

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As long as header information is properly encoded on individual MP3s (often not the case if you are trading tunes on Napster), the machine will automatically file music so you can retrieve it by artist, genre and album name.

CNN: All Music, All the Time

Some forge their e-mail header--the data above and below an e-mail that contains information about the recipient and sender.

FORBES: Spam Warfare