This guarantees that the colored paper in high - temperature processing is issued, they will not turn yellow.

这样可以包管花纸在矮温办理时不致于不收不韧 、 变黄.

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The researching works on the high - temperature processing of the black - and - white photographic materials during 1962 - 1997 are summarized.

本文是作者自1962年至1997年间研究照相材料高温加工过程所发表部分文章( 黑白 照相材料)的综述.

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