MNS 3663 Хүрэн болон чулуун нүүрс, антрацит гарал үүсэл болон технологийн параметрүүдээр ангилах. ISO 11760 Classification of Coals. ASTM D388 Standard Classification of Coals by Rank. ASTM D3172 Standard Practice For …
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(DOC) Диплом | Доржнамжим Дамдиндорж
Chapter 13, Policy options: North America. 2012 •. James Dobrowolski. As previously indicated, GEO-5 shifts the GEO focus from identifying environmental problems to identifying solutions that governments can …