Solarizing is an effect that occurs when a negative is exposed to light part way through the photographic development process.

曝光是在相片冲洗过程中把底片暴露在光线中所发生的效果。

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The trends of development of photographic catalogs are discussed.

分析了照相星表工作的发展趋势。

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Results The simple film-developing heating device could basically keep the photographic developer in constant temperature for best development effect in winter and spring.

结果：简易洗片加温装置，在冬、春季节使显影液温度基本恒定，基本达到显影液最佳显影效果；

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