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чулуу бутлуурын тээрмийн үйл явц. iso гэрчилгээ нь тээрмийн - nagelfee . About us ISO. ISO is an independent non-governmental international organization with a membership of 160 national standards bodies Through its members it brings together experts to share knowledge and develop voluntary consensus-based market relevant International Standards ...
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доорхи хариултыг уншаад зөвийг"+"бурууг"-"гэж тэмдэглээрэй. 1.амьсгал бол амьд биеийн үндсэн шинж. 2.амьсгал хамар,төвөнх,мөгөөрсөн хоолой,гуурсан хоолой,уушги зэрэг эрхтэнээр дамжин явагддаг 3.амьсгал авахад эс эдэд хийн солилцоо явагдахгүй. 4.уушгины амьдралын багтаамжийг хэмждэг багажийг спирометр гэнэ. 5.уушги хос …
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