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播放：0 时间：2025-06-23简介： -
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![[初中物理]一口气解决《机械效率》所有问题！全网最详知识讲解，零基础逆袭期末物理！](//imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2Fddd3873a3232f535d06e754a61b4ac9e844e4dc7.jpg%40672w_378h_1c_%21web-search-common-cover)
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![《热机的效率》优质课公开课 人教版初中物理九年级上册 教师获奖公开课比赛实录（有PPT课件教案）[魏老师]【市一等奖】](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F653574b98b61c0f466559615044c95e08d9f11ff.jpg%40672w_378h_1c_%21web-search-common-cover)
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![[初中物理]一口气解决《机械效率》所有问题！全网最详知识讲解，零基础逆袭期末物理！](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2Fddd3873a3232f535d06e754a61b4ac9e844e4dc7.jpg%40672w_378h_1c_%21web-search-common-cover)
![《热机的效率》优质课公开课 人教版初中物理九年级上册 教师获奖公开课比赛实录（有PPT课件教案）[魏老师]【市一等奖】](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F653574b98b61c0f466559615044c95e08d9f11ff.jpg%40672w_378h_1c_%21web-search-common-cover)
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