“减焦距镜”的概念、定义、翻译、参考文献-科学参考

单词	减焦距镜
释义	减焦距镜 Encyclopedia 艺术学特殊效果镜释 wide converter减焦距镜安装在摄影镜头光路中，可使该摄影镜头的焦距值成倍率（如0.42×、0.7×）缩小的附属镜。为倍率镜的一种。又称减倍镜、广角附加镜。
随便看	Riesz-Schauder theory Riesz space Riesz summability Riesz summation Riesz summation method Riesz system of functions Riesz theorem Riesz-Thorin convexity theorem Riesz transform Rietveld method rifa rifampicin rifamycin riffle riffle restoration riffle shuffle rifle Rifled barrel gun rifled barrel gun rifle shooting rifle shooting of Summer Paralympics rifling angle rift system rift valley Rift Valley fever

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。