工程师们正在进行仪器的校准工作以确保测量数据的准确性。

The engineers are performing ___calibrations on the instruments to ensure accurate measurements.

技术人员正在对实验室仪器进行校准，以确保测量数据准确。

The technician is performing ___calibrations on the lab equipment to ensure accurate measurements.

工程师们正在进行仪器的校准工作，以确保测量结果的准确性。

The engineers are performing ___calibrations on the equipment to ensure accurate measurements.