2026.05.20《水是软是硬？看水垢就知道》

你家烧水壶里那层白乎乎的水垢，就是水“硬”的证据。水的软硬取决于钙镁离子含量，硬水烧开结垢，软水打泡多。今天聊聊水也有“软硬脾气”。前往小宇宙评论区与主播互动

Episode metadata supplied by the publisher feed · Published May 19, 2026

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2026.05.20《水是软是硬？看水垢就知道》

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