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34-40.pdf | 2024-07-01 17:57:55 | 5.64 MB | |
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34.流水线：怎么让东西的价格越来越便宜.mp3 | 2024-07-01 17:57:55 | 1.99 MB | |
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35.复印机：差点让公司破产的发明_clip.mp3 | 2024-07-01 17:57:55 | 2.17 MB | |
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36.键盘：改正“错误”怎么就这么难？.mp3 | 2024-07-01 17:57:55 | 2.16 MB | |
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37.机器人 ：机器人长得像人？才不是！_clip.mp3 | 2024-07-01 17:57:55 | 2.11 MB | |
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38 显微镜：用玻璃珠发现细菌.mp3 | 2024-07-01 17:57:55 | 4.22 MB | |
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39.望远镜：长得像锅才是好望远镜？_clip.mp3 | 2024-07-01 17:57:55 | 1.97 MB | |
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40.人造卫星：人造卫星“唱歌”吓坏了谁？.mp3 | 2024-07-01 17:57:55 | 1.9 MB | |
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41-45.pdf | 2024-07-01 17:57:55 | 3.83 MB | |
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41.基因测序 几滴血避免大毛病_clip.mp3 | 2024-07-01 17:57:55 | 1.85 MB | |
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42.克隆：克隆是新发明？植物不这么看.mp3 | 2024-07-01 17:57:55 | 2.18 MB | |
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43.编程：电脑程序的前身是织布机.mp3 | 2024-07-01 17:57:55 | 1.98 MB | |
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44.手机：比砖头还要大的手机_clip.mp3 | 2024-07-01 17:57:55 | 1.74 MB | |
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45.化学周期表：尿里发现新世界.mp3 | 2024-07-01 17:57:55 | 4.32 MB | |
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46-50.pdf | 2024-07-01 17:57:55 | 4.16 MB | |
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46.塑料：了不起的发明怎么成了祸害.mp3 | 2024-07-01 17:57:55 | 1.82 MB | |
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47.钢铁：制造钢最重要的，真不是铁.mp3 | 2024-07-01 17:57:55 | 1.76 MB | |
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48.玻璃：玻璃曾是奢侈品.mp3 | 2024-07-01 17:57:55 | 1.62 MB | |
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49.水泥 费尽心思就为了发明石头？.mp3 | 2024-07-01 17:57:55 | 2 MB | |
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50.陶瓷：烧瓷器的窑里有神仙吗？.mp3 | 2024-07-01 17:57:55 | 4.53 MB | |
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51-55.pdf | 2024-07-01 17:57:55 | 3.6 MB | |
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51.橡胶为了种橡胶树，中国人操碎了心.mp3 | 2024-07-01 17:57:55 | 2.07 MB | |
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52.尼龙：来自工厂里的纺织材料.mp3 | 2024-07-01 17:57:55 | 1.76 MB | |
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53.摩天大楼：十层楼也敢叫摩天大楼？.mp3 | 2024-07-01 17:57:55 | 1.98 MB | |
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54.弓箭让动物灭绝的发明.mp3 | 2024-07-01 17:57:55 | 2.23 MB | |
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55.火药： 一场炼丹爆炸意外.mp3 | 2024-07-01 17:57:55 | 1.79 MB | |
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56-60.pdf | 2024-07-01 17:57:55 | 3.71 MB | |
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56.枪支 ：先有大炮才有枪.mp3 | 2024-07-01 17:57:55 | 3.82 MB | |
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57.潜艇：怎么发挥隐形的威力？.mp3 | 2024-07-01 17:57:55 | 1.99 MB | |
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58.坦克：铁皮疙瘩的威力.mp3 | 2024-07-01 17:57:55 | 1.91 MB | |
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59.火箭：既是兵器，又是交通工具.mp3 | 2024-07-01 17:57:55 | 1.88 MB | |
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60.原子弹、氢弹：发明原子弹的科学家后悔了.mp3 | 2024-07-01 17:57:55 | 1.96 MB |