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seamless steel pipe for liquid service
释义
seamless steel pipe for liquid service
Encyclopedia
工学
流体输送用无缝钢管
释
seamless steel pipe for liquid service
流体输送用无缝钢管
管道运输流体所用的采用热成形工艺制作的不带焊缝的钢管。简称无缝钢管。
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positive series
positive side
positive sidelight
positive sign
positive skewness
positive solution
positive species interaction
positive spinor
positive staining
positive strain energy
positive strand
positive subspace
positive supportive reaction
positive (symmetric) operator
positive symmetric operator
positive system of roots
positive term
positive term series
positive trace
positive type
positive uniaxial crystal
positive value
positive variation
positive variation of a function
positive variation of signed measure
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