“fixed focal length photographic lens”的概念、定义、翻译、参考文献-科学参考

单词	fixed focal length photographic lens
释义	fixed focal length photographic lens Encyclopedia 艺术学镜头种类释 fixed focal length photographic lens定焦距摄影镜头焦距固定不变的摄影镜头。
随便看	National Liberation Movement national liberation movement national library National Library Cataloging Center National Library Consortium National Library Institution National Library of Australian National Library of Brazil National Library of China National Library of China Publishing House National Library of France National Library of India National Library of Korea National Library of Mexico National Library of Peiping National Library of Peru National Library of Russia National Library of Singapore National Library of South Africa national license national life table national list of hazardous wastes National Literature National Livestock Station National Magazine Awards

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。