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Товчхондоо нүүрсний петрографийг нүүрсний хольцын шинж чанарыг зөв тодорхойлох, үнэрлэх үйл явц нь эцсийн бүтээгдэхүүний чанарт хэрхэн нөлөөлөхийг ойлгоход ашигладаг. Бизнес эрхлэгчид хямд өртгөөр илүү чанартай бүтээгдэхүүн үйлдвэрлэхээр ноцтой өрсөлдөж байна. Нөгөө талаар нийгмийн хариуцлагаа ухамсарлаж, үүнийгээ нотлох …
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