The system is set up but it needs some fine-tuning.

该系统已装配好，但需要一些细小调整。

《牛津词典》

After 2 months of fine-tuning I'm happy to report that I have implemented a productivity system that works really well.

经过两个月的精确调整，我很高兴向大家报告，我已经实行了一种高效方法，这种方法真的很有效。

youdao

Only by acknowledging both the good and the bad of what could happen and by fine-tuning your money management system will you be on your way to greater prosperity.

只有认识到将要发生的事情的好和不好的方面，以及优化你的资金管理系统，你才能能拥有更大的成功。

youdao

Tory education spokeswoman Liz Smith said the current system was failing too many pupils at lower levels and welcomed the "fine tuning" of assessment in fourth year.

BBC: Scottish exams shake-up announced