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powder metallurgy iron-based products
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powder metallurgy iron-based products
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工学
粉末冶金材料
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powder metallurgy iron-based products
粉末冶金铁基零件
以钢铁粉末为原料,采用粉末冶金技术制造的一类机械零件。又称烧结铁基零件。
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Envoys to Tang Dynasty
Envoys with Present Tributes to Ancient Chinese Emperor
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enzymatic batch reactor
enzymatic bubble reactor
enzymatic continuous-flow reactor
enzymatic cycling
enzymatic desizing
enzymatic dysfunction
enzymatic fed-batch reactor
enzymatic fluidized bed reactor
enzymatic fuel cell
enzymatic hydrolysis
enzymatic hydrolysis of wood
enzymatic jet reactor
enzymatic method
enzymatic modification of pulp
enzymatic packed bed reactor
enzymatic polymerization
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