Multiple dark fieldimage can readily be used in revealing the relation between diffraction pattern and bright-and dark-field images.
多重暗场象可以快速揭示衍射花样同明场和暗场象之间的关系。
2
Owing to the combination of bright-field and dark-field receiving image modes, most surface defects of interest are ensured to be effectively detected.
明、暗域相结合的成像模式确保了大部分缺陷的有效检出。
3
I'd seen a highly magnified image on one of Fields's computer screens, and it looked like a deep-sea photograph: bright colors against a field of black.