invisible shrinkage

例句：

1. 1.The material has a visible shrinkage when exposed to high temperatures.
   这种材料在暴露于高温时有明显的收缩。
2. 2. During the manufacturing process, there is an invisible shrinkage in the material.
   在制造过程中，材料中存在一种不可见的收缩。
3. 3.This method can reduce the visible shrinkage of the material during the curing process.
   这种方法可以在固化过程中减少材料的可见收缩。