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水文地质井管
释义
水文地质井管
Encyclopedia
工学
水文地质钻探
释
hydrogeological well pipe
水文地质井管
保护井壁的套管。有时也泛指套管与滤水管。如全部岩层为坚硬的稳定性岩石时,不需要安装井管,以孔壁当井管使用。又称井壁管。
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root-mean-square value
root mean square velocity
root morphyology
root node
root nodule
root nodule bacteria
root nodule organogenesis
root of a building
root of a cardinal number
root of a chamber complex
root of a derivative
root of a Lie algebra
root of a Lie group
root of an algebra
root of an algebraic group
root of an equation
root of a number
root of a polynomial
root of a root system
root of a tree
root of common baphicacanthus
root of lung
root of trust
root of unit
root of unity
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