摄影师微调了相机的设置以获得最佳照片质量。

The photographer ___fine-tuned the camera settings for perfect picture quality.

工程师们正在微调机器人的传感器以提高其精确度。

The engineers are ___fine-tuning the robot's sensors to improve its accuracy.

他在实验室里精细调整了实验参数以获得更准确的结果。

He ___fine-tuned the experiment parameters in the lab to get more accurate results.