The results show that in the presence of small amount of sulphite, the structure of developed grain changes from compact to filamentary and etch pit can be found.
结果表明，少量亚硫酸盐的加入使显影后的银颗粒从紧密结构变成粗银丝结构，并且发现有生成侵蚀坑的现象。
The results show that in the presence of small amount of sulphite, the structure of developed grain changes from compact to filamentary and etch pit can be found.
结果表明，少量亚硫酸盐的加入使显影后的银颗粒从紧密结构变成粗银丝结构，并且发现有生成侵蚀坑的现象。
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