单词	powder metallurgy
释义	powder metallurgy noun : a branch of science or an art concerned with the production of powdered metals or of metallic objects by compressing a powdered metal or alloy with or without other materials and heating without thoroughly melting to solidify and strengthen Word History First Known Use 1933, in the meaning defined above
随便看	stepstone stept steptoes stepups stepway stepwise stepwiser stepwisest ster ster broom ster chimes steradiancy steradians stercoraceous stercoral pocket stercoranism stercoranist stercoranists stercorarian stercorarii Stercorariidae stercorariidaes stercorariuses stercorary stercorated

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