tolalarning sinflanishi

sinteticheskoe volokno tolalarning sinflanishi tabiiy kimyoviy sun’iy minaral sintetik o’simlik hayvon mineral paxta zig’ir jun ipak asbest o’simlik paxta - meva yigiruv g’altak to’quv mato foydalanilgan adabiyotlar va manbalar organik kimyo – darslik i. a. tashev www.ziyonet.uz – referat www.referat.uz – referat www.mir-ximii.ru – rasmlar www.powerpoint.ru – slaydlar

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