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闭塞锻造
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闭塞锻造
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obliterated forging
闭塞锻造
在封闭模腔内,通过冲头的单向或对向运动,将金属镦粗与挤压得到无飞边近净尺寸精锻件的精锻方法。
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nitric acid mist
nitric acid process
nitric anhydride
nitric oxide
nitric oxide reductase
nitric oxide reductase (NOR)
nitric sulfide
nitride
nitride catalyst
nitride ceramics
nitrided ferroalloy
nitriding
nitriding potential
nitrification
nitrification inhibitor
nitrifying bacteria
nitrifying microorganism
nitrile
nitrile butadiene rubber
nitrile compound poisoning
nitrile oxide
nitrile rubber
nitrile sulfide
nitrile ylide
nitrilimine
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