In addition, the paper briefly describes the DVD optical disc, DVD player, display tube, and stereo sound system respectively.

还分别说明DVD光盘本身以及它使用的播放机 、 显像管和立体声放音系统概况.

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And the decoder can display time status will appear in the LED digital display tube.

并且可以通过显示译码电路将计时状态显示在LED数码显示管上.

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