衣服和窗户防水 – 1 级
19-10-2023 15:00
英国人经常被天气所困扰。然而，防水服是有前途的。水就从布上跳下来。
有一种特殊的化学物质可以达到这种效果。人们在房屋涂料中使用这种化学物质。人们首次将这种化学物质喷洒在靴子和夹克上。他们用脏水进行测试。真的有效
人们想让这种化学物质变得更强。他们可以把它用在建筑物和窗户上。下雨时，玻璃和建筑物上就没有灰尘了。我们不需要擦窗户了。大家都喜欢这样！
您可以在三级部分观看原始视频。
这种特殊的防水化学品对环境有什么好处？
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Reading
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