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无模拉拔
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无模拉拔
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拉拔
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dieless drawing
无模拉拔
利用金属在局部加热时,加热部位变形抗力降低,在施加外拉力的作用下,不使用模具而使坯料产生塑性变形的拉拔技术。
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upper directed
upper Dirichlet density
upper end
upper end of an integral
upper envelope
upper estimate
upper eyelid
upper finite group
Upper-flow system
upper function
upper gastrointestinal bleeding
upper gastrointestinal examination
upper gastrointestinal hemorrhage
upper girdle muscles
upper half-disk
upper half-martingale
upper half-plane
upper half-space
upper harmonic
upper harmonic wave
upper heat and lower cold
upper hemisphere
upper homology
upper hybrid frequency
upper hybrid oscillation
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