For preventing the formation of silver mud sedimented during the processing of hi -contrast negative image, the following four measures are useful and effective:1. using principal developing agents;
为了避免在冲洗高反差负像影像过程中产生银的沉积，形成银渣，可采用下列四项措施，效果良好：1采用主显影剂；
This prevents the silver from being removed from the negative, and the result is a contrasty image with muted colours.
这从根本上阻止了其它饮宴效果像素的被移动，而且结果是有单独的颜色一个明暗差别强烈的图像。
This prevents the silver from being removed from the negative, and the result is a contrasty image with muted colours.
这从根本上阻止了其它饮宴效果像素的被移动，而且结果是有单独的颜色一个明暗差别强烈的图像。
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