“F数漂移式变焦距镜头”的概念、定义、翻译、参考文献-科学参考

单词	F数漂移式变焦距镜头
释义	F数漂移式变焦距镜头 Encyclopedia 艺术学镜头参数释 F-number drift zoom lensF数漂移式变焦距镜头当摄影镜头焦距f＇改变时，该摄影镜头的入瞳直径Dλ虽也跟着产生改变，但变化的倍率小于焦距f＇的改变，即f＇与Dλ二者的比值在变焦中改变了，从而使该摄影镜头的F数在变焦的全过程中产生变化的变焦距摄影镜头。
随便看	fluorescence analysis fluorescence analysis of crop fluorescence astronomy fluorescence auto-correlation spectroscopy fluorescence auto-correlation spectroscopy (FACS) fluorescence blinking fluorescence complex fluorescence correlation spectroscopy fluorescence correlation spectroscopy (FCS) fluorescence correlation spectroscopy, FCS fluorescence cross-correlation spectroscopy fluorescence cross-correlation spectroscopy (FCCS) fluorescence detector fluorescence efficiency fluorescence emission spectrum fluorescence histochemistry fluorescence imaging fluorescence immunoassay fluorescence immunoassay analysis fluorescence immunoassay (FIA) fluorescence immunosensors fluorescence in ocean waters fluorescence in situ hybridization fluorescence in situ hybridization，FISH fluorescence intensity

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。