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单词
drill hole
释义
drill hole
Encyclopedia
理学
地质钻孔
释
drill hole; bore-hole
地质钻孔
在地质勘查工作中,利用钻探设备向地下钻成的直径较小、深度较大的柱状圆孔。又称钻井。
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category 2 vaccine
category cohomology
category development index
category equivalence
category generalization
category learning
category list
Category Management
category of Abelian groups
category of a closed subset
category of algebras
category of a set
category of automata
category of biosafety and biosecurity
category of categories
category of diagrams
category of erysipelas
category of functions
category of functors
category of groups
category of homomorphisms
category of mappings
category of mobilizing manipulations
category of modules
category of morphisms
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