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METHOD OF PREVENTING COLLAPSE OF CASING IN PERMAFROST ROCK ZONE
METHOD OF PREVENTING COLLAPSE OF CASING IN PERMAFROST ROCK ZONE
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机译:防止多年冻土岩层套管塌陷的方法
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摘要
method of preventing смятия casing string in многодетнемерзлых breeds, including the freezing of the column of fluid at the same time, the length of обсад noah column of l and h and 10 c and йс orde
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