变色

Adjust the pH of gold and silver powder of oil and gold powder has recycles nature, use of the golden oil must be a oxidability small far in neutral and quick-drying fast-and high viscosity resin oil, in order to avoid long-term preservation and oxidation, and best, method of self, can be further enhanced by chromotropic anti-oxidization.

调金油的酸碱度银粉和金粉都具有便当氧化的本质，所以搁置的调金油务必是氧化性小、酸碱度在洋性的迟潮迟固、矮黏度树脂油，为了制止恒久留存而起氧化，并最坏拔取即用即调的自调配办法，可以进一步提矮不攻氧化变色。

Oxidization of the package inevitably leads to the turned color and unusual shape.

包材的生锈将导致变色和异形不可避免。

Also, the composition of the electrolyte was found to influence the cyclic stability of PANI.

同时， 考察了电解质组分对聚苯胺电致变色稳定性的影响。

The paper studies the color range of papaver rhoeas red pigment under pH values, and compares it with the other indicators by the acid-base titration.

本文研究了虞美人色素在不同pH值溶液中的颜色变化，并通过虞美人色素和其它指示剂进行酸碱滴定的比较，结论为：虞美人色素能准确指示酸碱滴定的终点，其变色范围pH 6.33~8.25，颜色由紫红色变为棕色

Other deformity of hallux...牙釉质龋 other degenerative disorders of eyelid and periocular area ...其他阑尾炎 Other degenerative disorders of globe

牙釉质龋的早期病变由于轻度脱钙而呈白色斑点状，因此处钙质较疏松容易吸收唾液和食物中的色素物质而引起变色，。。。

12V/24V low voltage power supply, which is used in ground light, is safe and reliable. Inside synchronic digital controller realizes the effects of color changing. Without connecting to outside controller and cords, the synchronic signal trigger function of the inside controller could make lots of ground lights change color at the same time, including flickering, gradual changing, scanning, chasing, running and etc. to satisfy the requirements of lighting in different places. The combination of light and shade draws a colorful city nocturne, breeding a vivid feeling of live and phantasmagoric. LED ground light it novelty lighting and the best choice of city nocturne.

采用低压12V/24V 供电，安全可靠；通过内置同步数码控制器来实现颜色的变化功能，内置控制器具有同步信号触发功能，无需再外接控制器和控制线就能使无数个 LED 埋地灯实现同步变色，包括七彩跳变、七彩渐变、七彩扫描、七彩追逐、七彩跑马等功能以满足不同场所对灯光效果的需求，光与影的结合，勾画出七彩都市迷人的夜景，同时给人一种生动活泼、色彩缤纷、变化无穷的全新感觉、是现代化城市夜景的新颖之作和理想选择。

In Chapter 1, the progress of organic photochromic materials was reviewed.

第一章综述了有机光致变色化合物的进展。

In this dissertation the research of organic photochromic materials and the development of naphthopyrans are reviewed.

对所合成的化合物的光致变色性能进行了深入的研究，并分析讨论了分子结构与性能的关系。

Photochromic composite materials with good light sensitivity and extensive applications are being paid more and more attentions.

光致变色复合材料由于其优良的光学特性和应用价值得到广泛的关注。

3 Years working experience in photochromic and fluorescent dyes

2-3年工作变色和荧光染料的经验

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。