calibration tower

例句：

1. 1.The calibration tower was used to measure the accuracy of the equipment.
   校准塔用于测量设备的准确度。
2. 2. The engineers were busy calibrating the new machine.
   工程师们忙于校准新机器。
3. 3. During the calibration process, the engineers checked the machine's performance and adjusted the settings accordingly.
   在校准过程中，工程师检查了机器的性能，并相应地调整了设置。