这台钢琴的音色完美，因为经过了精细调音。

The piano's sound is perfect because it has been ___finely-tuned.

这台仪器经过精细调校，能检测到最微小的温度变化。

The ___finely-tuned instrument can detect the slightest temperature changes.

这台机器经过精细调整，能完美适应不同环境的工作需求。

The machine is ___finely-tuned to perfectly adapt to various working environments.