presentation of documentary evidence, material evidence and audio-visual material;
出示书证、物证和视听资料；
Some meetings require the presentation of data, which can be greatly enhanced by the use of appropriate audio-visual aids.
有些会需要展示数据，辅以适当的音像手段可以改善展示的效果。
Information is coded in the syntax using time stamps concerning the decoding and presentation of coded audio and visual data and time stamps concerning the delivery of the data stream itself.
信息通过时间戳编码，主要是关于解码以及显示音频和视频数据，时间戳是关于数据流本身。
Information is coded in the syntax using time stamps concerning the decoding and presentation of coded audio and visual data and time stamps concerning the delivery of the data stream itself.
信息通过时间戳编码，主要是关于解码以及显示音频和视频数据，时间戳是关于数据流本身。
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