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helical welded pipe process
释义
helical welded pipe process
Encyclopedia
工学
焊接钢管生产
释
helical welded pipe process
螺旋焊管生产
将钢带或钢板按一定螺旋线的角度弯卷成管坯,并将管缝焊接起来的工艺过程。
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fraxin; fraxoside; paviin; fraxetin-8-glucoside
fraxoside
frazil slush ruler
frazil slush sampler
FRB
FRD
freak wave
Frechet
Frechet derivative
Frechet differentiable
Frechet differentiable operator
Frechet lattice
Frechet sheaf
Frechet space
freckle
freckles
Fred
Fred Astaire
Fred Chester Bond
Freddy Canal
Frederic Augustus Lucas
Frederica von Stade
Frederic Edward Clements
Frederic Hymen Cowen
Frederic Joliot-Curie
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