“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	exciting current exciting object exciting source exciting star exciting winding exciton exciton absorption exciton band exciton blocking layer exciton diffusion exciton dissociation exciton generation excitonics exciton model exciton recombination exciton recombination radiation exciton spectrum Exclamation Mark galaxy exclave exclosure exclosure for vegetation restoration excluded excluded middle law excluded value excluded volume

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。