本文研究了邻苯二甲酸（H2PA）的用量以及H2PA的阴离子和阳离子对以苯并三氮唑银为银源的光敏热显影体系的影响。
We studied the effects of the amount of phthalic acid(H2PA), its positive ion and negative ion on photothermographic system based on silver benzotriazole as silver source.
他为这么晚才发现这“如此美妙的发明”感到遗憾，但还是学习了银版照相的课程，并委托他人拍摄和收集照片。
Regretting that "such a wonderful invention" had arrived so late in his lifetime, he still took lessons in daguerreotyping, and both commissioned and collected photographs.
鼎为炼银，炉为炼金；惟有耶和华熬炼人心。
The crucible for silver and the furnace for gold, but the Lord tests the heart.
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