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一天，瓦特在厨房里看见炉上有一壶水煮开了，壶盖‘‘啪啪’‘地响不停，还不断地往上跳动。他问奶奶这是什么原价，奶奶说：‘‘不知道，你自己想吧！’’经过多次的观察，他猜想是冒上来的水蒸气推动壶盖跳动。他继而想到可以用水蒸气的力量推动更重的东西。长大之后。他根据前人的经验，再总结自己的理论和实践，发明了蒸汽机。
RM8.00
9789672022909
Uncategorized
0.11 KG
N/A
