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照片或底片上的黑白影像﹐是乳剂层中卤化银晶体感光后经过显影还原成微小的银的颗粒组成。这些微小的银的颗粒称为银粒。银粒的粗细对影像的质量有很大影响。其他条件相同时﹐银粒细的影像比较清晰﹐影纹也较丰富。影像银粒的粗细﹐主要决定于感光材料本身的性能及冲洗条件。
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space-based architecture
space-based attack alarm system
space-based attention
space-based bistatic radars
Space Based Communication
Space-based early warning
space-based early warning system
Space-Based Electro-Optical Network
space-based GPS meteorology
space-based high-power microwave weapons
space-based imaging tracking
space-based information management system
space-based information network
space-based information support
space-based information system
Space-based infrared system
space-based ISAR
space-based jamming
space based laser
Space-Based Laser Readiness Demonstrator
space-based missile
space-based missile defense system
Space-based network
Space-based networks
spacebased observation
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更新时间:2025/5/30 22:54:21