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Bosh sahifa/Taqdimotlar | Tibbiyot/Havoning changlanganligini tekshirish va baholash
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Havoning changlanganligini tekshirish va baholash

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Mahsulot tavsifi

Changlar tabiatda hosil bolishiga qarab ikki xil bo’ladi: tabiiy va sun’iy. Tabiiy changlar – tabiatda hosil bo’ladigan changlar (shamollar ta’sirida hosil bo’ladigan changlar,vulkonchanglari va boshqalar). Sun’iy changlar-inson faoliyati natijasida (biron bir buyumga ishlov berish natijasida) hosil bo’ladi.

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#chang#diametri#aerozollar#havon#zarrachlar#milimikron
Sirojiddin Ullixojayev

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Sirojiddin Ullixojayev

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