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地质岩心钻探
释义
地质岩心钻探
Encyclopedia
理学
钻探工程
释
geological core drilling
地质岩心钻探
使用专用钻探机械,利用圆筒状钻头、岩心管和钻杆等组合成钻具,在岩石中环状破碎岩石,在孔底中心部分保留一个柱状的岩心,再从孔内取出岩心用以研究地质和矿产情况的钻探。简称地质钻探。是钻探工程学科下最重要的分支学科,是固体矿产地质勘探中采用的主要技术方法。
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inflectional asymptote
inflectional axis
inflectional curve
inflectional line
inflectional tangent
inflection point
inflector
inflexibility
inflexion
inflexional
inflexive relation
in flight aspect ratio
in-flight refuelling system of receiver aircraft
in-flight self-destruction system of missiles
Infliximab
inflora,endoflora
inflorescence
inflow
inflow boundary condition
inflow control completion
inflow performance relationship
influence
influence analysis
influence and evaluation of secondary structure noise
influence and evaluation of whole body vibration on human
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