1. Discolouration of silver flakes and basketry—inlaid silver artwares and the protection technology were studied. 研究了含有少量铜锌成分的银片或银丝笆镶嵌的银制工艺品变色及各种新工艺的防变色效果。
2. the discolouration and the falling colour and the colour spot and the colour staining of the polyester fabrics are one of the main problems, which exist in the disperse dyes. 近年涤纶染色物的变褪色和落色等色牢度问题以及色点、色斑等是分散染料存在的主要问题之一，本文分析了产生这些问题的原因与改进技术。
3. The result are quite agreeable and reproducibility well with those by tradition method of analysis. The method is rapid, simple, accurate and the discolouration of destination is sharp. 本法测定结果与传统分析方法测定结果吻合，终点变色敏锐、重现性好，具有快速、简便、准确等优点。
英英解释
n.
1. a soiled or discolored appearance
2. the act of changing the natural color of something by making it duller or dingier or unnatural or fa
