duplation

例句：

1. 1. The scientist conducted a duplicationof the experiment to check its accuracy.
   科学家进行了实验的重复以检查其准确性。
2. 2. Thecompany is facing a duplication of challengesthat it has already overcome.
   该公司正面临一系列重复的挑战，这些挑战它已经克服过。
3. 3. The data showed a duplication inthe growth rates between the two regions.
   数据显示两个地区之间的增长率出现了重复。