duplication of bladder

例句：

1. 1.The scientist performed a duplication of the experiment to check its accuracy.
   科学家为了检查实验的准确性进行了一次复制。
2. 2. The teacher asked for volunteers to perform a duplication of the task.
   老师要求志愿者进行任务的复制。
3. 3.The artist created a series of paintings that were a duplication of each other.
   艺术家创作了一系列相互复制的画作。