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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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spectrum level
spectrum line
spectrum locus
Spectrum losses
spectrum-luminosity diagram
spectrum matrix
spectrum measurement
spectrum model
spectrum monitoring
spectrum of a C*-algebra
spectrum of a commutative ring
spectrum of a complex
spectrum of a continuous signal
spectrum of a discrete signal
spectrum of a dynamic system
spectrum of a function
spectrum of a graph
spectrum of a hyperfunction
spectrum of a linear operator
spectrum of a linear transformation
spectrum of a matrix
spectrum of an element
spectrum of an element in normed ring
spectrum of an ideal
spectrum of an integral equation
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