contrast developer

例句：

1. 1.The photographer used a contrast developer to highlight the details in the photograph.
   摄影师使用对比显影剂来突出照片中的细节。
2. 2.The contrast developer was used to create a high-contrast image for better readability.
   对比显影剂被用来创造高对比度的图片，以便更好的阅读。
3. 3. The contrast developer was applied evenly on both sides of the glass to achieve the desired effect.
   对比显影剂均匀地涂在玻璃的两面上以达到期望的效果。