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厕所里这些事,可能比你想的更复杂!

October 30, 2026 · 6 min

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马桶上垫一张纸,就安全了吗?2022年的研究测过:冲水时看不见的液滴每秒能喷出好几米,能蹿到1.5米以上,在空气里飘好几分钟,纸挡得住皮肤,却挡不住空气。更反直觉的是,日本一项实验里,只用手纸擦和先用水洗再擦,两种方式的手上菌落数相差将近十倍,挡住微生物的从来不是那层纸。我们凭直觉害怕的地方,往往不是最该小心的地方;看不见的东西,才更需要靠数据替我们看清楚。上个厕所的学问,可能比我们想象中的更复杂。

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