unit trial operation

例句：

1. 1. This is a unit trial operation for testing the new software.
   这是一次单元试验操作，用于测试新软件。
2. 2.The engineers conducted a unit trial operation to ensure the equipment was functioning properly.
   工程师们进行了单元试验操作，以确保设备正常工作。
3. 3.During the unit trial operation, the team carefully monitored the data and made adjustments as needed.
   在单元试验操作期间，团队仔细监测数据，并根据需要进行调整。