“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	Gansu Xiaolong Shan National Nature Reserve Gansu Xinglong Shan National Nature Reserve Gansu Yanchiwan National Nature Reserve Gansu Zhangye Heihe Wetland National Nature Reserve Ganswindt crater Gan Tang gan theorem gantry crane gantry lightning protection device gantry milling machine gantry scaffold Gantt chart Gantuoyan Gan Weilin Ganxian Qu Gan Xifen Gan Xuewei Ganymede Gan Yong Ganyu Gang Ganyu Qu Ganzhou city Ganzhou City Walls Ganzhou District Museum Ganzhou Jingji Jishu Kaifaqu

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。