“底-正摄影系统”的概念、定义、翻译、参考文献-科学参考

单词	底-正摄影系统
释义	底-正摄影系统 Encyclopedia 艺术学摄影工艺释 negative-positive photographic system底-正摄影系统感光材料经曝光冲洗获得负像后称为底片，印相纸经由底片进行接触印相冲洗获得正像后，或者放大纸经由底片进行放大冲洗获得正像后，称为照片，此摄影成像系统称为底-正摄影系统。又称负-正摄影系统。
随便看	collective risk model collective risk theory collective rotation Collective security policy collective security system of the United Nations collective security theory Collective Security Treaty Organisation collective self collective self-determination collective self-esteem collective society on sino-Japanese war’s historical document collective support collective trademark collective training for students from different opera classes collective unconscious collective unconsciousness collective vibration collective violence collective voice collective work collective works of one author collective works of various authors Collective Writings from the Literary Prosperity Terrace Collective Writings on the Tieweishan Mountains collectivism

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。