“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	water environment monitoring water environment protection water environment quality evaluation water environment quality management water environment regulation water erosion water erosion in China water erosion prediction model water escape structure water eutrophication water eutrophication monitoring water extractor waterfall waterfall cave waterfall field Waterfall landscape waterfall landscape waterfall model waterfall spectrum water features lighting in landscape architechture water fee management water-fertilizer coupling effectsof crop water filament water filling test of hydro-generator unit water filling type

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。