mechanics
A mechanic is someone whose job is to repair and maintain machines and engines, especially car engines.
If you smell something unusual (gas fumes or burning, for instance), take the car to your mechanic.
如果你闻到了异味(例如汽油味或燃烧味),那就需要找修理工看看你的车。
The mechanics of a process, system, or activity are the way in which it works or the way in which it is done.
What are the mechanics of this new process?
这一新工序的运作方式是什么?
Mechanics is the part of physics that deals with the natural forces that act on moving or stationary objects.
He has not studied mechanics or engineering.
他没有学习过力学或者工程学。
the theory of quantum mechanics.
量子力学理论。