РД 07-226-98 Инструкция по производству геодезическо-маркшейдерских рабо

РД 07-226-98 Инструкция по производству геодезическо-маркшейдерских рабо

47 Pages · 2014 · 593 KB · Russian
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“ Your task is not to seek for love, but merely to seek and find all the barriers within yourself that you have built against it. ” ― Rumi
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