One-step photosensitive material which gives a negative and a positive image simultaneously because of its short processing time, high photosensitivity, convenience, and freedom from environmental pollution, has been ...One-step photosensitive material which gives a negative and a positive image simultaneously because of its short processing time, high photosensitivity, convenience, and freedom from environmental pollution, has been widely used in scientific research, medicine, industry, astronomy and amateur photography.展开更多
文摘One-step photosensitive material which gives a negative and a positive image simultaneously because of its short processing time, high photosensitivity, convenience, and freedom from environmental pollution, has been widely used in scientific research, medicine, industry, astronomy and amateur photography.