“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	structural analysis structural analysis for hydraulic concrete structural analysis method structural analysis of flight vehicle structural analysis of pharmaceuticals structural analysis of rocket structural analysis of spacecraft structural and functional material structural and sampling zero count structural and sequential approach structural angle Structural Anthropology structural anthropology structural automorphism structural basin structural biology structural boundedness structural bridge area/zone structural calculation for hydraulic structures structural capital structural care structural carpentry structural ceramics structural characterization structural characterization of materials

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。