“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	road transportation employee road transportation for bulky cargo road transportation of dangerous goods road transportation of open pit road transportation operation permit road transportation safety road transport organization and management road transport volume roadworthiness certificate of motor vehicle roak Roald Amundsen Roald Hoffmann roaming Roaming along the Pond roaming reaction Roamnce at the Turning of Five Dynasties and Northern Song Roar, China Roar Chinese roaring Roaring Flame of the Eastern Battlefield roaring in equine Roar! The Yellow River roasted eel processing equipment roasted fish fillet processing equipment roasted green tea

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。