27 - 8кл - Принцип действия гигрометра и психрометра
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![ЧУВС #42 [Лисевский, Аранова, Пушкин]. Большой концерт. Часть первая](https://sun9-45.userapi.com/qekcnmwjE_jPiOyqbYaODlZrcYaatLTMZ3EGAA/k9RgL1f2MHU.jpg)
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