叮咚！快来打开奥运赛场背后的“科技秘籍”
2024-07-27 16:48:47 听新闻
https://content-static.cctvnews.cctv.com/snow-book/index.html?item_id=15609104226913751061&toc_style_id=feeds_default&share_to=copy_url&track_id=62620eed-ef2a-4f28-be9a-1c9113ab31cd
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叮咚！快来打开奥运赛场背后的“科技秘籍”
2024-07-27 16:48:47 听新闻
https://content-static.cctvnews.cctv.com/snow-book/index.html?item_id=15609104226913751061&toc_style_id=feeds_default&share_to=copy_url&track_id=62620eed-ef2a-4f28-be9a-1c9113ab31cd
责任编辑：张炬