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炮眼
释义
炮眼
Encyclopedia
工学
射孔完井
释
perforation hole
炮眼
在射孔完井过程中,由射孔弹燃爆后形成的穿透套管、水泥环直到地层一定深度处的孔眼。
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upper semicontinuous
upper semicontinuous decomposition
upper semicontinuous equivalence
upper semicontinuous function
upper semi continuous mapping
upper semi-continuous mapping
upper semicontinuous mapping
upper semicontinuous partition
upper semi-lattice
upper semi-modular lattice
upper semisphere
upper series
upper set
upper side frequency
Upper Silesia Coalfield
upper singular exponent
upper solution
upper solution; supersolution
upper-stage
upper stage liquid rocket engine
upper strong derivative
upper subsemilattice
upper sum
upper surface
upper tangent arc
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