imperfect tuning

例句：

1. 1. The imperfect tuning of the radio caused us to miss the important broadcast.
   收音机的不完全调谐让我们错过了重要的广播。
2. 2. In music theory, imperfect tuning refers to a situation where the pitches are not perfectly in tune with each other.
   在音乐理论中，不完全调谐指的是音高之间不完全协调的情况。
3. 3. Due to the imperfect tuning of the gears, the machine was difficult to start and runsmoothly.
   由于齿轮的不完全调谐，这台机器很难启动并顺利运行。