没想到吃根冰棍居然这么难！古代硝石制冰是真的吗？ Is it true that ancient saltpeter made ice?

Name: 没想到吃根冰棍居然这么难！古代硝石制冰是真的吗？ Is it true that ancient saltpeter made ice?
Uploaded: 2023-06-21T21:09:42+08:00
Description: 没想到吃根冰棍居然这么难！古代硝石制冰是真的吗？ Is it true that ancient saltpeter made ice?

分类：科学

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