Bajardi: akt sohasida kasbi ta’limi fakulteti

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Bog'liq
ekologiya amaliy 1

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- oilangiz da buzilgan kran, trubalr bormi.

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Buzilgan krandan qancha suv oqib ketmoqda: kran tagiga birorta idish qo‘yib va qancha vaqt mobaynida u to‘lishini aniqlang.

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