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closed caption网站

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Postech, Inc. is a design engineering and manufacturing firm specializing in niche market products aimed at the broadcasting, data acquisition and telecommunications industries

postech.com

Postech, Inc. is a design engineering and manufacturing firm specializing in niche market products aimed at the broadcasting, data acquisition and telecommunications industries.

工业与制造 closed caption closed captioning closed-caption

2026-09-23

实用指南

Closed Caption 是什么?和字幕、转录的区别及使用要点: Closed caption（隐藏式字幕）是嵌入视频信号或文件中的文字信息，观众可以自行开启或关闭，主要为听障人士提供对白、音效和说话人身份的同步文字说明。它和普通字幕（subtitles）、转录（transcription）的核心区别在于：closed caption 默认不显示、可开关，且...