The air was circulated mechanically.

空气是用机械推动循环的。

The car was mechanically sound, he decided.

这辆车从机械的角度来说是非常可靠的，他判定道。

I'm not mechanically minded.

我没有机械方面的头脑。

He nodded mechanically, his eyes fixed on the girl.

他机械地点点头，眼睛盯着那个女孩。