Piezoelectric ceramic is a function material which can exchange energy between mechanic and electricity.

压电陶瓷是一种可实现机械能与电能相互转换的功能材料。

The acceleration follows the mechanic principle, the proton energy increases with the laser intensity while it decreases when the target thickness and density increase.

加速过程符合力学原理，随着激光峰值强度的增加，质子束的能量也随之增加；

Engineering minimal surface, however, refers to a surface of minimal energy with some mechanic attributes.

而在索膜结构分析中，最小曲面指的是具有某种力学特征的能量最小曲面。