机械学的

例句：

1. 1. The mechanics of the machine are crucial for its proper functioning.
   机器的机械结构对于其正常运作至关重要。
2. 2. Mechanics are responsible for maintaining and repairing machinery.
   机械师负责维护和修理机械设备。
3. 3. Engineers use mathematics to design and build machines.
   工程师使用数学来设计和建造机器。