“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	cross point cross polarization cross-polarization cross pollination cross-pollination cross polytope cross-post cross-power spectrum cross presentation cross prism cross prisms cross product cross-profile cross projection cross projection plane cross propagation Cross ProtectionCross Protection cross quadrilateral cross-question the ballad cross radiative calibration cross ratio cross ratio; harmonic ratio cross reaction cross-reference cross-reference structure

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。