“negative-positive photographic system”的概念、定义、翻译、参考文献-科学参考

单词	negative-positive photographic system
释义	negative-positive photographic system 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	natural basis natural bear bile powder natural belt natural bias natural bioactive peptide natural biological component natural biological treatment of livestock and poultry wastewater natural biomaterials natural bitumen natural boundary natural boundary condition natural boundary element method natural boundary homomorphism natural boundary integral method natural boundary integral operator natural boundary of analyticity natural boundary reduction natural bridge natural broadening natural bundle natural bypass natural capital natural cause theory natural cheese natural circulation

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