trench effect

例句：

1. 1. The trench effect is a phenomenon where the surface of a material changes shape when it is subjected to pressure or stress.
   隧道效应是一种现象，当材料受到压力或应力时，其表面形状发生变化。
2. 2.In the trench effect, the material flows inward due to the internal pressure.
   在隧道效应中，由于内部压力的作用，材料会向内流动。
3. 3. The trench effect is often used in engineering to predict how materials will behave under different conditions.
   隧道效应在工程中常用来预测材料在不同条件下的行为。