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sand control methods
释义
sand control methods
Encyclopedia
工学
防砂方法
释
sand control methods
防砂方法
在采油过程中针对油层及油井条件,防止地层砂流入井筒的措施。
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rank of a prime ideal
rank of a projective module
rank of a quadratic form
rank of a relation
rank of a ring
rank of a root system
rank of a set
rank of a set of vectors
rank of a singular point
rank of a space
rank of a subset
rank of a system of equations
rank of a system of vectors
rank of a tensor
rank of a transformation
rank of a valuation
rank of a vector bundle
rank of a vector space
rank of a web
rank of commensurability
rank of death cause
rank of indefiniteness
rank of the elliptic curve
rank of the group of units
rank of the people's police
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