accelerated fading test的用法和样例：
- Throngh a sories of color fading tests carried on color image produced by three cyan couples with different structure, the author studied the Couse of color fading in color paper.
- A simple test will show if this is real gold.
- The path grew more obscure in the fading light.
- Pupils who pass the test will be promoted to the next higher grade.
- Hopes of a peace settlement are now fading.