the invention относитс to the development and exploitation of нефт ньк and gas wells and stations of the underground хранени strip.the purpose of изобретени - increased reliability of mouth - wa by
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机译:这项发明适用于нефтньк和气井以及地下хранени带的站的开发和开采。изобретени的目的-增强嘴的可靠性-wa by
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