“foreign matter”的概念、定义、翻译、参考文献-科学参考

单词	foreign matter
释义	foreign matter [`fär·ǝn ´mad·ǝr] ^{SCIENCE AND TECHNOLOGY} Any substance not belonging naturally in the place where found.
随便看	rock unit rock varnish Rockwell hardness Rockwell hardness test rock wood rock wool Rocky Mountain spotted fever rocky point effect rod portlandite portland-pozzolana cement portland stone port of entry port operations service portrait Portuguese man-of-war Portulacaceae Portunidae port-wine stain Porulosida Poseidon posistor position positional astronomy positional-error constant

科学参考收录了103327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。