特高频带的带宽为428千赫，这意味着单个部分能够承载一个简单视频图片，光盘效果的视频以及新闻快报、天气预报和紧急通知。
Its bandwidth of 428 kilohertz means a single segment can carry a bare-bones video picture, compact disc-quality audio, and text for news flashes, weather details and emergency announcements.
如果你的网站不断地发送更新内容和新闻通知给用户，这些信息也很快会将用户淹没的。
If your site is constantly sending out updates and news announcements, it can quickly overwhelm users. Only send out notifications when absolutely necessary.
整个会议期间将在此发放新闻材料和其他通知。
News material and other announcements will be made available in this room throughout the meeting.
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