“secondary item”的概念、定义、翻译、参考文献-科学参考

单词	secondary item
释义	secondary item [`sek·ǝn´der·ē `īd·ǝm] ^ORDNANCE Any item, including end items, components, and spare parts, which has not been classified as a principal item.
随便看	Crocodylidae Crocodylinae crocoisite crocoite crocus crofting Croixian CROM Cro-Magnon man cromfordite Cromwell Current cron croning process cronstedtite crooked hole crooked-hole country Crookes dark space Crookes glass crookesite Crookes radiometer Crookes tube crop crop coal crop dusting crop out

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。