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Бу маколада Инсон организмига зарур элементлардан бири кремний ҳақида ҳамда бу элемент манбаси қаердан олиниши қайси мевада мавжудлиг
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8af69240f26d4c101426f323ccdd0398
The Model Regulations cover the classification of dangerous goods and their listing, the use, construction, testing and approval of packagings and portable tanks, and the consignment procedures (marking, labelling, placarding and documentation). They
Selected, peer reviewed papers from the Fourth International Conference on Advanced Materials and Structures (AMS 2011), October 27-28, 2011, Timişoara, Romania
The European Agreement concerning the International Carriage of Dangerous Goods by Inland Waterways (ADN) agreed in Geneva on 26 May 2000 under the auspices of the United Nations Economic Commission for Europe (UNECE) and the Central Commission for N
This authoritative Agreement is intended to increase the safety of international transport of dangerous goods by road. Regularly amended and updated since its entry into force, it contains the conditions under which dangerous goods may be carried int
These recommendations have been developed in the light of technical progress, the advent of new substances and materials, the exigencies of modern transport systems and, above all, the requirement to ensure the safety of people, property and the envi