contrast control

例句：

1. 1. The contrast between theold and new is striking.
   新旧之间的对比令人印象深刻。
2. 2. The contrastive control system helpsto improve the accuracy of the data.
   对比控制系统有助于提高数据的准确性。
3. 3. Thecontrastive control measures weredesigned to prevent errors in thedata processing.
   对比控制措施旨在防止数据处理中的误差。