“powder-metallurgy sand screen”的概念、定义、翻译、参考文献-科学参考

单词	powder-metallurgy sand screen
释义	powder-metallurgy sand screen 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	dynamical perturbation dynamical pictures dynamical pinch effect dynamical pressure dynamical pressure flying head dynamical reference system dynamical relaxation dynamical response theory dynamical satellite geodesy dynamical simulation dynamical spectrum dynamical stability dynamical state dynamical symmetry dynamical symmetry breaking dynamical system dynamical system research dynamical system theory dynamical theory and kinematical theory dynamical theory of diffraction dynamical time dynamical time-scale dynamical variable dynamical variable as operator dynamical viscosity

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