“粉末冶金滤砂管”的概念、定义、翻译、参考文献-科学参考

单词	粉末冶金滤砂管
释义	粉末冶金滤砂管 Encyclopedia 工学机械防砂释 powder-metallurgy sand screen粉末冶金滤砂管由铜合金包裹经过筛选的铜颗粒或铁粉（多数采用铁粉）烧结而成的防砂筛管。
随便看	polynomial matrix system polynomial mean-square regression polynomial model polynomial module polynomial norm polynomial of best approximation polynomial of degree n polynomial of least deviation polynomial of one indeterminate polynomial of several indeterminates polynomial operation polynomial operator polynomial order polynomial over a ring polynomial polyhedron polynomial quotient polynomial reducibility polynomial regression polynomial regression model polynomial relation polynomial remainder polynomial remainder theorem polynomial representation polynomial ring polynomial ring in m variables

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