| Radiation monitoring and sampling
at oil and gas fields in russia
Радиационный контроль и пробоотбор на нефтегазовых промыслах россии методические указания |
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MinNR Приказ N 20 от 21.01.2013Ministry of Natural Resources and Ecology. MNR … |
GOST 17608-91Sidewalk concrete slabs. Specifications |
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