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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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vis viva equation
vis viva integral
Vit
vitacin
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Vitali
Vitaliano Brancati
Vitali convergence theorem
Vitali covering lemma
Vitali covering theorem
Vitali curve
vitalight
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vital indexing
Vitali set
Vitalism
vitalism
Vitali theorem
vitality of language
Vitali variation
vital sign
vital statistics
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