The main reason is the natural sand fade ultraviolet UV effect, changesofcolor reaction is very flexible.
天然彩砂褪色的主要原因是紫外光的影响，紫外光对颜色的变化反响极为灵活。
2
This paper primarily studied the changesofcolor and the content of phenol in pericarp of "brumal jujube".
笔者初步探讨了白熟冬枣贮藏期间果皮色泽变化与酚类物质含量变化的关系。
3
The presence of water accelerated aging properties, such as changesofcolor and flexural property and interfacial compatibility of wood flour and polymer.