calibration of thermocouple

例句：

1. 1. The calibration of the thermocouple is crucial for accurate temperature measurements.
   热电偶的校准对于准确的温度测量至关重要。
2. 2. The engineer calibrated the machine before starting work.
   工程师在开始工作前校准了机器。
3. 3.The calibration process involves checking the instrument against a standard to ensure accuracy.
   校准过程涉及将仪器与标准进行比较，以确保准确性。